Home › Education
US
1 of 1 storefronts
Content in en-US
Content in en-US
Information
Apple ID6443509668
Bundle IDcom.graphmath.LeastSquaresCurveFit
SellerSeller
Min iOS15.0
Min macOS12.0
Device familiesiphone, ipad, ipod
Released2022-09-26
Copyright© GraphMath 2022-25
Privacy policyLink ↗
Preview 2 platforms
iPhone 10 images
iPad 10 images
What’s New Version 5.6
Bug fixes and crash prevention
Description
“Least Squares Curve Fit” is a user friendly, free of charge and free of ads app.
User inputs point sets and chooses function types.
Utilizing the Least Squares Linear Regression Method, the app calculates best fit curves, reports equations and draws graphs.
Point sets can be stored in a table and are available after app is closed.
Currently available function types are:
2D:
1. Line.
2. Parabola.
3. Polynomial up to 8th degree.
4. Circle.
5. Conic section (Ellipse or Hyperbola).
6. Trigonometric function as
C + A1*cos(ω*x) + B1*sin(ω*x) + … + An*cos(n*ω*x) + Bn*sin(n*ω*x),
where user can select n between 1 and 8 and enter any ω.
7. Exponential Function.
8. Bell Curve.
3D:
1. Plane.
2. Sphere.
Also, there is an option to choose the Best Fit:
the app goes through all the possible shapes and lists them in order from best to worst fit based on residuals.
In some cases, when the standard Least Squares method with orthogonal projection does not work, best fit for Line, Parabola, Polynomial and Trigonometric functions can be calculated with SVD.
Links to four other free apps by same developers are included in the app:
1. “Matrix Solver Step by Step” Linear Algebra Visual Guide.
2. “Polynomials and Linear Systems” Equation Solver.
3. “GraphMath” Graphing Calculator.
4. “Vectors and Planes” (and Spheres and Ellipsoids) 3D Geometry Guide.
Developers hope to get feedback from users at graphmath@aol.com.
Accessibility
ipadiphonemacrealityDevicetvoswatch
Version history 21 versions
Build 873817895v5.62025-05-29 17:09:50
Bug fixes and crash prevention
Build 872450569v5.52025-02-13 08:42:30
1. Link to our new app: 'Construct Polynomial: Interpolate & Approximate'.
2. Bug fixes and UI improvements.
Build 870462839v5.42024-11-16 17:15:28
Link to our new app: 'Polynomial Solver Step by Step', which will replace 'Polynomials and Linear Systems'.
Build 869243286v5.32024-09-25 08:40:01
1. Link to our new app: "Calcu-Logarithm", all about logarithms, from arithmetic to calculus.
2. Bug fixes and crash prevention.
Build 868972513v5.22024-09-16 21:56:33
1. Links to our new apps:
* 'Drawing with Math' (Vector & Pixel Art),
* '3D Rotations & Quaternions',
* 'Base to Base' (Number Converter).
2. UI and performance improvements.
Build 854514599v5.12023-01-29 18:16:25
1. Blank coordinate fields can be filled with random entries. Range choices are provided.
2. Process improvements and bug fixes.
Build 853960351v5.0.12022-12-18 19:11:32
Bug fix and prevention
Build 853930531v5.02022-12-16 01:51:18
1. Next 3D approximation shape: Sphere.
2. Bug fixes and UI improvements
Build 853748154v4.12022-12-07 03:13:18
Link to Linear Algebra app (Matrix Solver Step by Step) with instructions on solving Least Squares problems
Build 853422725v4.02022-11-20 17:13:21
Added the first 3D item: Plane.
Build 853370294v3.2.22022-11-15 21:45:28
Bug fixes
Build 853306696v3.2.12022-11-13 09:55:03
Bug fix
Build 853266390v3.22022-11-11 03:13:35
1. Residuals can be shown and hidden on the graph.
2. Best fit can be calculated with SVD for Line, Parabola, Polynomial and Trigonometric functions, when the standard Least Squares method with Orthogonal Projection does not work.
3. UI improvements and bug fixes.
Build 853134644v3.12022-11-06 16:35:27
1. Added new Zoom Options, to zoom separately by X or Y.
2. UI improvements and bug fixes.
Build 852887130v3.02022-10-24 13:34:15
Added a new Option to choose the Best Shape:
the App goes through all the possible shapes
and lists them in order from best to worst fit based on residuals.
Build 852848186v2.22022-10-19 18:51:43
UI improvements and bug fixes.
Build 852839113v2.1.12022-10-18 17:50:24
Bug fix
Build 852778670v2.12022-10-17 16:06:58
1. 'Bell Curve’ graph has color-coded areas for 1, 2 and 3 Standard Deviations.
2. Added a table with coordinates and residual data for each point.
3. Point sets can be pasted from other apps, such as Pages and Numbers.
4. New controls to scroll points UI up/down: 1 line, 1 page (4 lines), Top/Bottom.
5. Option to remove a point by swiping left.
6. Maximum number of points increased to 200.
7. Bug fixes and UI Improvements.
Build 852647907v2.02022-10-09 23:30:48
1. Added two new shapes: 'Exponential Function’ and 'Bell Curve'.
2. Bug fixes.
Build 852514075v1.0.12022-09-29 18:28:07
Bug fixes
Build 852405717v1.02022-09-26 15:14:58
No pricing data captured yet — comparisons appear once the app has paid storefronts or in-app purchases.
Availability 1 of 1 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
| US | en-US | Free | 2 | 5.0 | 5.6 |
Change log 25 changes · US
✎
releaseNotes updated
Bug fixes and crash prevention
✎
description updated
“Least Squares Curve Fit” is a user friendly, free of charge and free of ads app.
User inputs point sets and chooses function types.
Utilizing the Least Squares
✎
subtitle updated
Best approximate curve fitter
✎
name updated
Least Squares Curve Fit
◆
Version 5.6 released
Bug fixes and crash prevention
◆
Version 5.5 released
1. Link to our new app: 'Construct Polynomial: Interpolate & Approximate'.
2. Bug fixes and UI improvements.
◆
Version 5.4 released
Link to our new app: 'Polynomial Solver Step by Step', which will replace 'Polynomials and Linear Systems'.
◆
Version 5.3 released
1. Link to our new app: "Calcu-Logarithm", all about logarithms, from arithmetic to calculus.
2. Bug fixes and crash prevention.
◆
Version 5.2 released
1. Links to our new apps:
* 'Drawing with Math' (Vector & Pixel Art),
* '3D Rotations & Quaternions',
* 'Base to Base' (Number Converter).
2. UI and performance improvements.
◆
Version 5.1 released
1. Blank coordinate fields can be filled with random entries. Range choices are provided.
2. Process improvements and bug fixes.
◆
Version 5.0.1 released
Bug fix and prevention
◆
Version 5.0 released
1. Next 3D approximation shape: Sphere.
2. Bug fixes and UI improvements
◆
Version 4.1 released
Link to Linear Algebra app (Matrix Solver Step by Step) with instructions on solving Least Squares problems
◆
Version 4.0 released
Added the first 3D item: Plane.
◆
Version 3.2.2 released
Bug fixes
◆
Version 3.2.1 released
Bug fix
◆
Version 3.2 released
1. Residuals can be shown and hidden on the graph.
2. Best fit can be calculated with SVD for Line, Parabola, Polynomial and Trigonometric functions, when the standard Least Squares method with Orthogonal Projection does not work.
3. UI im
◆
Version 3.1 released
1. Added new Zoom Options, to zoom separately by X or Y.
2. UI improvements and bug fixes.
◆
Version 3.0 released
Added a new Option to choose the Best Shape:
the App goes through all the possible shapes
and lists them in order from best to worst fit based on residuals.
◆
Version 2.2 released
UI improvements and bug fixes.
◆
Version 2.1.1 released
Bug fix
◆
Version 2.1 released
1. 'Bell Curve’ graph has color-coded areas for 1, 2 and 3 Standard Deviations.
2. Added a table with coordinates and residual data for each point.
3. Point sets can be pasted from other apps, such as Pages and Numbers.
4. New controls to s
◆
Version 2.0 released
1. Added two new shapes: 'Exponential Function’ and 'Bell Curve'.
2. Bug fixes.
◆
Version 1.0.1 released
Bug fixes
◆
Version 1.0 released