log(1)

NAME
log - logarithm

CALLING SEQUENCE
[y]=log(x)

PARAMETERS

x   : constant, vector or (symmetric positive definite) matrix

DESCRIPTION
natural logarithm.If x is a vector log(x)=[log(x1),...,log(xn)]. If x is a matrix log(x) is the matrix logarithm of x. The result is complex if x is not positive or definite positive. (If x is a matrix, x must be symmetric and positive definite: then exp(log(x))=x).

SEE ALSO
exp