Convert to 32-bit signed integer
int32
For infinite and NaNs values, Scilab and Matlab int32 return different values.
A = int32(inf) A = 2147483647 A = int32(-inf) A = -2147483648 A = int32(nan) A = 0
A = int32(%inf) A = -2147483648 A = int32(-%inf) A = -2147483648 A = int32(%nan) A = -2147483648