[VA] SRC #015 - HP-15C & clones: Big NxN Matrix Inverse & Determinant

[Fernando del Rey]

Absolutely brilliant, Valentín!

As said by J-F, we will need some time to understand the matrix partition methods you have used to implement such elegant solutions to both the matrix inversion and determinant problems.

The fact that it can be done with short and linear pieces of code in both cases, with no loops or branching, use of no memory registers or flags, … is indeed hard to believe!

This is also a great example of what can be done with the power of the matrix operations set offered by the 15c. It is worth trying to read and understand your code after having reread the relevant chapter about matrices in the 15c Owner’s Handbook (Section 12).

Thanks for your effort to produce this jewel, Valentín, much appreciated!