Posts filed under matrix

Orthogonal Projection of v onto u1,u2 using the TiNSpire – Linear Algebra Made Easy

Say you need to find the orthogonal projection of v onto W the subspace of R^3  . You pull out your TiNspire and launch the Linear Algebra Made Easy app from www.ti-nspire-cx.com and enter as follows: .   Now, just lean back and view the steps until the final answer shows. Sweet!  

Gauss Jordan Elimination / Row Echelon – Step by Step – using the TiNSpire CX

Gauss Jordan Elimination is a pretty important topic in Linear Algebra. So, it would be great to see steps when performing the procedure, also called Reverse Row Echelon method. It seems there is a continental divide in its proper naming. Once you can pull out your handy TiNspire and launch the Linear Algebra Made Easy… (read more)

Compute Determinant for 2×2, 3×3, 4×4, 5×5 Matrix via Cofactors – Step by Step – using TiNspire’s Linear Algebra Made Easy

There is a number of ways to compute determinants of square matrices depending on their dimensions. Determinants of 2×2 and 3×3 matrices can simply be computed using their set formulas as seen below:     Determinants of 4×4 and higher matrices actually take advantage of determinants found for smaller square matrices using Cofactors as illustated… (read more)

Do NOT follow this link or you will be banned from the site!