#### Introduction to Anaglyph Stereoscopy in Excel – part #2: the principles of creating and viewing 3D pictures

05/06/2011

This tutorial explains the basic principles of creating and displaying anaglyph pictures.

#### Introduction to Anaglyph Stereoscopy in Excel – part #1: a more efficient composite rotation in the 3D Cartesian space

05/04/2011

I made a stereoscopic model in October last year, however, choosing the wrong colors (red and blue on a black background, the effect was very weak (if any). This series was suggested to me last week by one of the guests here on the website, Don L. (thanks Don!), who sent me his stereoscopic cube. I opened the model, put on my goggles and his cube literally popped out of the…

#### A Solver for Systems of Linear Equations in Excel

04/25/2011

This is a linear system of equations solver in Excel. The size of the system is programmable by the user from 2 to 20 which means, depending on the setting selection, the model can instantly find the solution of linear systems starting from 2 equations and 2 unknowns up to 20 equations and 20 unknowns. It uses the following built-in Excel spreadsheet functions: MMULT(), MINVERSE() and TRANSPOSE(). Like everything on…

#### The Easy Way of Solving Systems of Linear Equations in Excel – using the INVERSE() spreadsheet function

04/24/2011

This brief tutorial explains how to calculate the solution vector of a system of linear equations using the Excel spreadsheet function MINVERSE() which calculate the inverse of a matrix. [sociallocker][/sociallocker]

#### TRANSPOSE() & MMULT() – two important Excel spreadsheet functions for matrix manipulations

04/11/2011

This is a tutorial introducing two important matrix manipulation spreadsheet functions in Excel: the matrix transposition function TRANSPOSE() and the matrix multiplication function MMULT(). These functions are a bit harder to use than the regular spreadsheet functions in the sense that the result is a matrix and a matrix cell range is treated by the program as a unity (you cannot change the formula since you cannot operate on a single cell). There are some…