alog(3I)
ALOG, DLOG, QLOG, CLOG, CDLOG - Computes natural logarithm
Showing IRIX 6.5.30 (default release). Last changed in IRIX 6.5.19.
NAME ALOG, DLOG, QLOG, CLOG, CDLOG - Computes natural logarithm SYNOPSIS CF90 and MIPSpro 7 Fortran 90: ALOG ([X=]x) DLOG ([X=]x) QLOG ([X=]x) CLOG ([X=]x) CDLOG ([X=]x) STANDARDS Fortran 95 QLOG and CDLOG extensions to FORTRAN 77 and Fortran 95. DESCRIPTION LOG is the generic function name; the others are specifics. These are elemental intrinsic functions for the Fortran 90 compiler. These functions evaluate y = ln(x). CDLOG is called implicitly by the MIPSpro Fortran 90 compiler as a result of a generic ALOG call with a complex double-precision argument. NOTES The ALOG, DLOG, and CLOG intrinsic function names can be passed as arguments; the others cannot. RETURN VALUES ALOG returns the real natural logarithm of its real argument. DLOG returns the double-precision natural logarithm of its double-precision argument. QLOG returns the quad-precision natural logarithm of its quad-precision argument. CLOG returns the complex natural logarithm of its complex argument. CDLOG returns the complex double-precision natural logorithm of its complex double-precision argument.