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 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 app from www.tinspireapps.com just enter your matrix as shown below:
Notice that first the forward Gauss Elimination Method is performed, aka Row Echelon Method.
Lastly, the Reverse Row Echelon Method gives the final solution, which appears in the most right column. Voila.
Using Matrix Made Easy at https://www.tinspireapps.com/?a=MME
Solve any Matrix Equation like the ones below:
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 below. As usual, nicely laid out with every step along the way until the final answer shows.
Download and further information on this Linear Algebra Made Easy app at