NAME

log, alog, dlog, clog, zlog, cdlog − Fortran natural logarithm intrinsic function

SYNOPSIS

real r1, r2
double precision dp1, dp2
complex cx1, cx2
double complex dx1, dx2

r2 = alog(r1)
r2 = log(r1)

dp2 = dlog(dp1)
dp2 = log(dp1)

cx2 = clog(cx1)
cx2 = log(cx1)

dx2 = cdlog(dx1)
dx2 = zlog(dx1)
dx2 = log(dx1)

DESCRIPTION

alog returns the real natural logarithm of its real argument.  dlog returns the double-precision natural logarithm of its double-precision argument.  clog returns the complex logarithm of its complex argument.  zlog and cdlog return the double-precision complex natural logarithm of their double-precision complex argument.  The generic function log becomes a call to alog, dlog, clog, or zlog depending on the type of its argument. 

SEE ALSO

exp(3M). 

CX/UX Hf77 Fortran Reference Manual