How do I calculate the inverse of a matrix on a TI-83?

[torquerotates]

My quiz is in a couple of hours. And I can't figure out how to calculate the inverse of a square matrix on a Ti83. Does anyone know how?

 

[HallsofIvy]

Just like you would find the multiplicative inverse of a number: use A ^ ( -1 ) where A is your matrix. Be sure to have parentheses around the -1.

 

[torquerotates]

thanks so much!