This function no longer exists

New syntax: char(x,y) ===> charpoly(x,y)

charpoly(A,{v='x},{flag=5}): det(v*Id-A)=characteristic polynomial of the 
matrix or polmod A. flag is optional and ignored unless A is a matrix; it ma
y 
be set to 0 (Le Verrier), 1 (Lagrange interpolation), 2 (Hessenberg form), 3
 
(Berkowitz), 4 (modular) if A is integral, or 5 (default, choose best method
). 
Algorithms 0 (Le Verrier) and 1 (Lagrange) assume that n! is invertible, whe
re 
n is the dimension of the matrix.

This function did not change

As far as I can recall, this function never existed

New syntax: compimag(x,y) ===> x*y

x*y: product of x and y.

Total time spent: 0
