CoFactors and TI Nspire and TI 89

KermMartian · Site Admin (Posts: 64222)

Are you talking about finding the cofactor matrix, the adjugate matrix, or something else? Welcome to Cemetech.

KermMartian · Site Admin (Posts: 64222)

Well, considering that someone went through the trouble of making a program to do this, I'd imagine that there's no way to do it natively in one step. If you look at the source for that particular program, it will probably help you understand how you could port it to the Nspire. Unfortunately, the BASIC language on the Nspire isn't exactly like the TI-BASIC language on the TI-89. This might also help:
http://en.wikipedia.org/wiki/Cofactor_%28linear_algebra%29#Matrix_of_cofactors

Jim Bauwens · Member (Posts: 118)

The language is the same, it's just missing certain graphical methods. Most mathematical 68k basic programs should work. Maybe if you are running them on a non CAS you could get some problems because the 68k have a CAS.

KermMartian · Site Admin (Posts: 64222)

The language is the same, it's just missing certain graphical methods. Most mathematical 68k basic programs should work. Maybe if you are running them on a non CAS you could get some problems because the 68k have a CAS.