log(3f)
NAME
log, alog, dlog, clog − Fortran natural logarithm intrinsic function
SYNTAX
real r1, r2
double precision dp1, dp2
complex cx1, cx2
r2 = alog(r1)
r2 = log(r1)
dp2 = dlog(dp1)
dp2 = log(dp1)
cx2 = clog(cx1)
cx2 = log(cx1)
DESCRIPTION
The alog function returns the real natural logarithm of its real argument. The dlog function returns the double-precision natural logarithm of its double-precision argument. The clog function returns the complex logarithm of its complex argument. The generic function log becomes a call to alog, dlog, or clog depending on the type of its argument.