Syntax
zeros(Expr,[Var])
Description
Returns the zeros (reals or complex according to the CAS settings) of the expression Expr for the variable Var (or the matrix where the lines are the solutions of the system : Expr1=0,Expr2=0...).
Example
zeros(x^2+4) returns [] in real mode and [-2*i,2*i] in complex mode
zeros — Discussion