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:: Free Excel Add Ins for boosting the mathematical capabilities of Excel. Curve-fitting functions, matrix functions, etc.
:: If there is one thing that keeps many engineers and scientists from using Excel more, it is the lack of advanced mathematical functions.


XlXtrFun™   http://www.ozgrid.com
Free Extra Math Functions for Microsoft Excel. 2D and 3D Interpolate and Extrapolate Functions, Cubic Spline, Polynomial Curve Fitting, Derivatives ...
Added: 04-04-2004 - Updated: 01-23-2012 - Hits total: 7305

Matrix and Linear Algebra Functions   http://digilander.libero.it/foxes/
MATRIX.xla by the Foxes Team is a great free collection of linear algebra and matrix functions for Excel. A must-have for math fans!
Added: 04-05-2004 - Updated: 03-30-2005 - Hits total: 8346

xlPrecision   http://precisioncalc.com/
xlPrecision 2.0 adds worksheet formula functions that provide vastly more precise results from formulas, eliminate binary conversion errors, empower you to use vastly larger & smaller numbers, and much more. Download the Free Edition today.
Added: 04-05-2004 - Updated: 05-09-2008 - Hits total: 3485

XNUMBERS   http://digilander.libero.it/foxes
Multi Precision Floating Point Computing for EXCEL. A booster for numeric calculus in Excel.
Added: 10-12-2004 - Updated: 03-30-2005 - Hits total: 4208

VB Numerical Methods   www.vbnumericalmethods.com
Database of free downloadable Excel VBA finance and math code, examples, functions, and addins.
Added: 12-26-2004 - Updated: 03-30-2005 - Hits total: 14704

Numerical Integration   parker9.com
Does 1D numerical integration on any Excel cell formula given the independent variable and range of integration. The user is allowed to use two different quadrature rules: Gauss-Legendre and Romberg integration.
Added: 03-22-2010 - Updated: 03-22-2010 - Hits total: 504

Formula Plotter   parker9.com
Formula Plotter allows the user to plot any Excel cell formula given the independent variables (one for Scatter and two for surface plots) and the range to plot. It also allows for multiple line plots on a chart.
Added: 03-22-2010 - Updated: - - Hits total: 608