Description
Best approximate curve fitter
“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 [email protected].
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About
Bundle Id
com.graphmath.LeastSquaresCurveFitMin Os. Version
13.0Release Date
Mon, Sep 26, 2022Update Date
Sun, Jan 29, 2023Content Rating
4+Has IMessage
NoSupport Watch
NoSupport Siri
NoFile Size
7.63MBHas Game Center
NoFamily Sharing
NoSupport Passbook
NoSupported Languages
EnglishSupport
What's New
version
5.1updated
1 year ago1. Blank coordinate fields can be filled with random entries. Range choices are provided. 2. Process improvements and bug fixes.
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