Category Archives: Newton

Daily Download 20: Section Properties

Posted on 06/10/2012 by dougaj4

The download spreadsheets today provide functions to find section properties of shapes either defined by coordinates or selected from a list of shape types.  The section properties found are: area, first and second moments of area about the X and Y … Continue reading →

Posted in Charts, Coordinate Geometry, Drawing, Excel, Maths, Newton, UDFs, VBA | Tagged , , , , | Leave a comment

Daily Download 19: Solving polynomials

Posted on 06/10/2012 by dougaj4

Today’s download provides analytic solutions to polynomial equations up to fourth order (that is quadratic, cubic and quartic equations) and an iterative method to solve equations of higher order.  All these functions are found in the download file: http://interactiveds.com.au/software/Polynomial.zip The … Continue reading →

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Daily Download 18: Simultaneous Equations and Matrix Arithmetic Functions

Posted on 04/10/2012 by dougaj4

Today’s downloads collect several spreadsheets related to solution of simultaneous equations and matrix arithmetic, some of which were presented previously as part of the ALGLIB library (Daily Download 13). Solving simultaneous equations described how to solve simultaneous equations using the Excel … Continue reading →

Posted in AlgLib, Excel, Link to dll, Maths, Newton, UDFs, VBA | Tagged , , , , , , , | Leave a comment

Daily Download 17: Numerical Integration

Posted on 03/10/2012 by dougaj4

Some simple numerical integration functions (using the trapezoidal rule and Simpson’s Rule) were included in the Eval2 spreadsheet, presented on Daily Download Day 15, but for purposes were better accuracy and/or higher speed are required more sophisticated methods will do a … Continue reading →

Posted in AlgLib, Excel, Maths, Newton, Numerical integration, UDFs, VBA | Tagged , , , , , , , | Leave a comment

Daily Download 16: Intersections, interpolations, and rotations

Posted on 02/10/2012 by dougaj4

There is only one download file today: http://interactiveds.com.au/software/IP2.ZIP , but it contains a wealth of different functions dealing with 2D and 3D geometry, including intersections of lines, circles and spheres, simple interpolation functions, and functions for rotating points in 2D … Continue reading →

Posted in Coordinate Geometry, Drawing, Excel, Maths, Newton, UDFs, VBA | Tagged , , , , , , , | Leave a comment