About Ncalc - Graphing Calculator 84
The graphing calculator provides a UI similar to a real 84 graphing calculator. ◉ Graphing Calculator - Supports function, polar, and parametric graphs. - Press MODE and select Graph mode, then press Y= to open the graph...
The graphing calculator provides a UI similar to a real 84 graphing calculator. ◉ Graphing Calculator - Supports function, polar, and parametric graphs. - Press MODE and select Graph mode, then press Y= to open the graph editor. Press GRAPH to draw the functions. - Interactive and manual tracing modes. - Shows intersections, roots, and extrema (local maxima and minima) of function graphs. - Shows derivatives of function graphs. - Shows tangents to function and polar graphs. - Best‑fit line for a set of points. - TABLE generates a table of values for the selected graph. - CALC computes min, max, d/dx, and integrals of the selected graph. ◉ Scientific Calculator - Includes a computer algebra system for symbolic calculation. - Supports all functions of real 83 and 84 graphing calculators. - All basic and advanced math functions: complex numbers, probability, angles, relational operations, logic operations, and matrix and vector operations. - Users can define custom calculator functions. ◉ Equation Solver (press ALPHA ENTER to open the SOLVER menu) - Solves any equation with Auto Solver mode and can provide symbolic roots. - Solves quadratic, cubic, quartic, and quintic equations. - Solves systems of equations with up to 5 variables. ◉ Statistics - 1‑Var Stats: calculates 1‑variable statistics. - 2‑Var Stats: calculates 2‑variable statistics. - LinReg(ax+b): fits a linear model to data. - QuadReg: fits a quadratic model to data. - CubicReg: fits a cubic model to data. - QuartReg: fits a quartic model to data. - LinReg(a+bx): fits a linear model to data. - LnReg: fits a logarithmic model to data. - ExpReg: fits an exponential model to data. ◉ Inferential Statistics and Distributions - Z‑Test, T‑Test, 2‑SampZTest, 2‑SampTTest, 1‑PropZTest, 2‑PropZTest, Z‑Interval, T‑Interval, 2‑SampZInt, 2‑SampTInt, 1‑PropZInt, 2‑PropZInt, Chi‑square Test, Chi‑square GOF Test, 2‑SampFTest, LinRegTTest, LinRegTInt, ANOVA. - All distribution functions, including Normal, Student’s t, Chi‑square, F, binomial, and more. ◉ Get Calculator 84 Premium Upgrade to the Premium version to access all the features above, including advanced math functions, statistics, inferential statistics and distributions, and more. Choose from 3 subscription options: - A 1‑month subscription - A 1‑year subscription - A lifetime purchase Subscription payments will be charged to your iTunes account at confirmation of purchase and at the start of each renewal term. You can cancel at any time through your iTunes account settings. You must do this at least 24 hours before the end of the current period to avoid being charged. Cancellation takes effect the day after the current period ends, and you will be downgraded to the free service. Terms of Service: https://calc84-efd3d.firebaseapp.com/tos.html Privacy Policy: https://calc84-efd3d.firebaseapp.com/privacypolicy.html
Version History Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.2 Jun 25 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.1 Feb 7 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.0 Feb 5 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 2.9.9 Jan 27 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 2.9.6 Jan 19 Thanks for using Calc84! In this update, we've made several improvements and fixed some bugs to enhance your experience. We appreciate your feedback! If you enjoy using Calc84, please consider leaving a review on the App Store. 2.9.5 12/15/2025 Thanks for using Calc84! In this update, we've made several improvements and fixed some bugs to enhance your experience. We appreciate your feedback! If you enjoy using Calc84, please consider leaving a review on the App Store. 2.9.4 11/12/2025 We’ve made some under-the-hood enhancements to make the app run more smoothly and reliably. Thanks for using our app! 2.2.2 06/02/2025 - Graphing: allow to x=value graph - Graphing: derivative of Erf and Erfc - StatPlot: Modified box plot option - Graphing: graph of limit and numeric derivative - Improved equation solver - Improved TVM solver - Bug fixes and performance improved 2.2.1 06/01/2024 Fixed problem when opening unit conversion 2.2.0 04/01/2024 - New option: Ignore all infix operators at the end of the input - Improved equation solver - Improved graphing - Bug fixes and performance improved. 2.1.9 03/25/2024 - Support graphing erf and erfc function for normalcdf - Improved symbolic integral - Fixed some problems 2.1.8 11/14/2023 - Support graphing piecewise syntax - Inlined Ans value - Fixed keymap binding issue on iPad - Allow to change fraction key position to ALPHA X 2.1.7 10/31/2023 Bug fixes and performance improved. 2.1.6 09/04/2023 - Improved equation solver. - Improved programming feature. - Improved expression details. - Fix graph of sequence function not working in some cases. - Improved plaintext export. - Fix symbolic derivative not works with Yn functions. - Support multiply two lists variable. - Improved TVM solver. - Allow to change fraction key position. - Display numeric result for symbolic polar form. 2.1.1 05/10/2023 Added numeric result in home screen. Bug fixes. 2.1.0 01/19/2023 Bug fixes and performance improved. 2.0.7 09/09/2022 Allow change display font size bigger. Better equation solver and numeric calculation. Fixed some problems and improve performance. 2.0.6 12/27/2021 New graph mode: sequence. Improve graphing graphics. Improved external keyboard support. 2.0.5 04/25/2021 New graph mode: sequence. Improve graphing graphics. Faster computation. 2.0.4 04/18/2021 Faster table calculation. Support two table modes: AUTO and ASK. Improve TVM Solver. 2.0.3 03/17/2021 Math formulas. Improve graph tracing, STAT PLOT. Drag to reorder custom function. Improved external keyboard support. Fixed a lot of problems. 2.0.2 01/31/2021 Box plot and histogram support frequencies. Drag to reorder custom functions. Improve "sum" and "prod" functions. 1.2.2 12/22/2020 Added ref() function Added TVM Solver and related functions Improved 1-VarStats, CubicReg and QuartReg Fixed STATPLOT was disabled in iOS 14 1.2.1 12/06/2020 Noninteger frequency is accepted in 1-VarStats and 2-VarStats. Piecewise graph is supported. Improved regression calculation speed. 1.2.0 10/20/2020
Previous Versions
Here you can find the changelog of Ncalc - Graphing Calculator 84 since it was posted on our website on 2021-12-17 23:13:11.
The latest version is 3.0.2 and it was updated on 2026-10-10 22:26:23. See below the changes in each version.
Ncalc - Graphing Calculator 84 version 3.0.2
Updated At: 2026-10-08
Changes: Version History Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.2 Jun 25 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.1 Feb 7 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.0 Feb 5 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 2.9.9 Jan 27 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 2.9.6 Jan 19 Thanks for using Calc84! In this update, we've made several improvements and fixed some bugs to enhance your experience. We appreciate your feedback! If you enjoy using Calc84, please consider leaving a review on the App Store. 2.9.5 12/15/2025 Thanks for using Calc84! In this update, we've made several improvements and fixed some bugs to enhance your experience. We appreciate your feedback! If you enjoy using Calc84, please consider leaving a review on the App Store. 2.9.4 11/12/2025 We’ve made some under-the-hood enhancements to make the app run more smoothly and reliably. Thanks for using our app! 2.2.2 06/02/2025 - Graphing: allow to x=value graph
- Graphing: derivative of Erf and Erfc
- StatPlot: Modified box plot option
- Graphing: graph of limit and numeric derivative
- Improved equation solver
- Improved TVM solver
- Bug fixes and performance improved 2.2.1 06/01/2024 Fixed problem when opening unit conversion 2.2.0 04/01/2024 - New option: Ignore all infix operators at the end of the input
- Improved equation solver
- Improved graphing
- Bug fixes and performance improved. 2.1.9 03/25/2024 - Support graphing erf and erfc function for normalcdf
- Improved symbolic integral
- Fixed some problems 2.1.8 11/14/2023 - Support graphing piecewise syntax
- Inlined Ans value
- Fixed keymap binding issue on iPad
- Allow to change fraction key position to ALPHA X 2.1.7 10/31/2023 Bug fixes and performance improved. 2.1.6 09/04/2023 - Improved equation solver.
- Improved programming feature.
- Improved expression details.
- Fix graph of sequence function not working in some cases.
- Improved plaintext export.
- Fix symbolic derivative not works with Yn functions.
- Support multiply two lists variable.
- Improved TVM solver.
- Allow to change fraction key position.
- Display numeric result for symbolic polar form. 2.1.1 05/10/2023 Added numeric result in home screen.
Bug fixes. 2.1.0 01/19/2023 Bug fixes and performance improved. 2.0.7 09/09/2022 Allow change display font size bigger.
Better equation solver and numeric calculation.
Fixed some problems and improve performance. 2.0.6 12/27/2021 New graph mode: sequence.
Improve graphing graphics.
Improved external keyboard support. 2.0.5 04/25/2021 New graph mode: sequence.
Improve graphing graphics.
Faster computation. 2.0.4 04/18/2021 Faster table calculation.
Support two table modes: AUTO and ASK.
Improve TVM Solver. 2.0.3 03/17/2021 Math formulas.
Improve graph tracing, STAT PLOT.
Drag to reorder custom function.
Improved external keyboard support.
Fixed a lot of problems. 2.0.2 01/31/2021 Box plot and histogram support frequencies.
Drag to reorder custom functions.
Improve "sum" and "prod" functions. 1.2.2 12/22/2020 Added ref() function
Added TVM Solver and related functions
Improved 1-VarStats, CubicReg and QuartReg
Fixed STATPLOT was disabled in iOS 14 1.2.1 12/06/2020 Noninteger frequency is accepted in 1-VarStats and 2-VarStats.
Piecewise graph is supported.
Improved regression calculation speed. 1.2.0 10/20/2020
Ncalc - Graphing Calculator 84 version 3.0.2
Updated At: 2026-06-29
Changes: Version History Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.2 4d ago Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.1 Feb 7 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.0 Feb 5 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 2.9.9 Jan 27 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 2.9.6 Jan 19 Thanks for using Calc84! In this update, we've made several improvements and fixed some bugs to enhance your experience. We appreciate your feedback! If you enjoy using Calc84, please consider leaving a review on the App Store. 2.9.5 12/15/2025 Thanks for using Calc84! In this update, we've made several improvements and fixed some bugs to enhance your experience. We appreciate your feedback! If you enjoy using Calc84, please consider leaving a review on the App Store. 2.9.4 11/12/2025 We’ve made some under-the-hood enhancements to make the app run more smoothly and reliably. Thanks for using our app! 2.2.2 06/02/2025 - Graphing: allow to x=value graph
- Graphing: derivative of Erf and Erfc
- StatPlot: Modified box plot option
- Graphing: graph of limit and numeric derivative
- Improved equation solver
- Improved TVM solver
- Bug fixes and performance improved 2.2.1 06/01/2024 Fixed problem when opening unit conversion 2.2.0 04/01/2024 - New option: Ignore all infix operators at the end of the input
- Improved equation solver
- Improved graphing
- Bug fixes and performance improved. 2.1.9 03/25/2024 - Support graphing erf and erfc function for normalcdf
- Improved symbolic integral
- Fixed some problems 2.1.8 11/14/2023 - Support graphing piecewise syntax
- Inlined Ans value
- Fixed keymap binding issue on iPad
- Allow to change fraction key position to ALPHA X 2.1.7 10/31/2023 Bug fixes and performance improved. 2.1.6 09/04/2023 - Improved equation solver.
- Improved programming feature.
- Improved expression details.
- Fix graph of sequence function not working in some cases.
- Improved plaintext export.
- Fix symbolic derivative not works with Yn functions.
- Support multiply two lists variable.
- Improved TVM solver.
- Allow to change fraction key position.
- Display numeric result for symbolic polar form. 2.1.1 05/10/2023 Added numeric result in home screen.
Bug fixes. 2.1.0 01/19/2023 Bug fixes and performance improved. 2.0.7 09/09/2022 Allow change display font size bigger.
Better equation solver and numeric calculation.
Fixed some problems and improve performance. 2.0.6 12/27/2021 New graph mode: sequence.
Improve graphing graphics.
Improved external keyboard support. 2.0.5 04/25/2021 New graph mode: sequence.
Improve graphing graphics.
Faster computation. 2.0.4 04/18/2021 Faster table calculation.
Support two table modes: AUTO and ASK.
Improve TVM Solver. 2.0.3 03/17/2021 Math formulas.
Improve graph tracing, STAT PLOT.
Drag to reorder custom function.
Improved external keyboard support.
Fixed a lot of problems. 2.0.2 01/31/2021 Box plot and histogram support frequencies.
Drag to reorder custom functions.
Improve "sum" and "prod" functions. 1.2.2 12/22/2020 Added ref() function
Added TVM Solver and related functions
Improved 1-VarStats, CubicReg and QuartReg
Fixed STATPLOT was disabled in iOS 14 1.2.1 12/06/2020 Noninteger frequency is accepted in 1-VarStats and 2-VarStats.
Piecewise graph is supported.
Improved regression calculation speed. 1.2.0 10/20/2020
Ncalc - Graphing Calculator 84 version 3.0.1
Updated At: 2026-06-02
Changes: Version History Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.1 Feb 7 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 3.0.0 Feb 5 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 2.9.9 Jan 27 Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback! 2.9.6 Jan 19 Thanks for using Calc84! In this update, we've made several improvements and fixed some bugs to enhance your experience. We appreciate your feedback! If you enjoy using Calc84, please consider leaving a review on the App Store. 2.9.5 12/15/2025 Thanks for using Calc84! In this update, we've made several improvements and fixed some bugs to enhance your experience. We appreciate your feedback! If you enjoy using Calc84, please consider leaving a review on the App Store. 2.9.4 11/12/2025 We’ve made some under-the-hood enhancements to make the app run more smoothly and reliably. Thanks for using our app! 2.2.2 06/02/2025 - Graphing: allow to x=value graph
- Graphing: derivative of Erf and Erfc
- StatPlot: Modified box plot option
- Graphing: graph of limit and numeric derivative
- Improved equation solver
- Improved TVM solver
- Bug fixes and performance improved 2.2.1 06/01/2024 Fixed problem when opening unit conversion 2.2.0 04/01/2024 - New option: Ignore all infix operators at the end of the input
- Improved equation solver
- Improved graphing
- Bug fixes and performance improved. 2.1.9 03/25/2024 - Support graphing erf and erfc function for normalcdf
- Improved symbolic integral
- Fixed some problems 2.1.8 11/14/2023 - Support graphing piecewise syntax
- Inlined Ans value
- Fixed keymap binding issue on iPad
- Allow to change fraction key position to ALPHA X 2.1.7 10/31/2023 Bug fixes and performance improved. 2.1.6 09/04/2023 - Improved equation solver.
- Improved programming feature.
- Improved expression details.
- Fix graph of sequence function not working in some cases.
- Improved plaintext export.
- Fix symbolic derivative not works with Yn functions.
- Support multiply two lists variable.
- Improved TVM solver.
- Allow to change fraction key position.
- Display numeric result for symbolic polar form. 2.1.1 05/10/2023 Added numeric result in home screen.
Bug fixes. 2.1.0 01/19/2023 Bug fixes and performance improved. 2.0.7 09/09/2022 Allow change display font size bigger.
Better equation solver and numeric calculation.
Fixed some problems and improve performance. 2.0.6 12/27/2021 New graph mode: sequence.
Improve graphing graphics.
Improved external keyboard support. 2.0.5 04/25/2021 New graph mode: sequence.
Improve graphing graphics.
Faster computation. 2.0.4 04/18/2021 Faster table calculation.
Support two table modes: AUTO and ASK.
Improve TVM Solver. 2.0.3 03/17/2021 Math formulas.
Improve graph tracing, STAT PLOT.
Drag to reorder custom function.
Improved external keyboard support.
Fixed a lot of problems. 2.0.2 01/31/2021 Box plot and histogram support frequencies.
Drag to reorder custom functions.
Improve "sum" and "prod" functions. 1.2.2 12/22/2020 Added ref() function
Added TVM Solver and related functions
Improved 1-VarStats, CubicReg and QuartReg
Fixed STATPLOT was disabled in iOS 14 1.2.1 12/06/2020 Noninteger frequency is accepted in 1-VarStats and 2-VarStats.
Piecewise graph is supported.
Improved regression calculation speed. 1.2.0 10/20/2020 Changeable display font size.
Improve big number calculation. 1.1.9 09/08/2020
Ncalc - Graphing Calculator 84 version 3.0.1
Updated At: 2026-02-07
Changes: Thanks for using Calc84! In this update, we are excited to introduce Math OCR, a new feature that allows you to input mathematical expressions using your device's camera or photos. Simply snap a picture of a handwritten or printed equation, and Calc84 will recognize and convert it into editable text for you to work with. We hope you find Math OCR helpful and look forward to your feedback!
Ncalc - Graphing Calculator 84 version 2.2.2
Updated At: 2025-05-31
Changes: May 31, 2025
Version 2.2.2
We’ve made some under-the-hood enhancements to make the app run more smoothly and reliably. Thanks for using our app!
Ncalc - Graphing Calculator 84 version 2.2.0
Updated At: 2024-06-01
Changes: Jun 1, 2024
Version 2.2.0
- Graphing: allow to x=value graph
- Graphing: derivative of Erf and Erfc
- StatPlot: Modified box plot option
- Graphing: graph of limit and numeric derivative
- Improved equation solver
- Improved TVM solver
- Support more hardware keyboard layouts
- Bug fixes and performance improved
Ncalc - Graphing Calculator 84 version 2.1.9
Updated At: 2024-04-03
Changes: Apr 3, 2024
Version 2.1.9
- New option: Ignore all infix operators at the end of the input
- Improved equation solver
- Improved graphing
- Bug fixes and performance improved.
Ncalc - Graphing Calculator 84 version 2.1.7
Updated At: 2023-11-07
Changes: Nov 7, 2023
Version 2.1.7
- Supported Apple Silicon M2 mac
- New! Piecewise function for graphing
- New! CONDITIONS menu in TEST menu
- Inlined Ans value, added an option to disable inline Ans value.
- Bug fixes and performance improved.
- Fixed keymap binding issue on mac
- Allow to change fraction key position to ALPHA X
Ncalc - Graphing Calculator 84 version 2.1.6
Updated At: 2023-09-01
Changes: Sep 1, 2023
Version 2.1.6
Bug fixes and performance improved.
Ncalc - Graphing Calculator 84 version 2.1.5
Updated At: 2023-08-17
Changes: Aug 17, 2023
Version 2.1.5
- Fixed crash on mac 12
- Key map customization
- Added "dot" style for graphing
- Enable formulas for Mac
- Added search bar to function menu
- Math engine improved
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