.TH INTRO 3M "8 May 1985" .UC 4 .SH NAME intro \- introduction to mathematical library functions .SH DESCRIPTION These functions constitute the math library, .I libm. They are automatically loaded as needed by the Fortran compiler .IR f77 (1). The link editor searches this library under the \*(lq\-lm\*(rq option. Declarations for these functions may be obtained from the include file .RI < math.h >. .SH "LIST OF FUNCTIONS" .sp 2 .nf .ta \w'copysign'u+2n +\w'gamma.3m'u+10n \fIName\fP \fIAppears on Page\fP \fIDescription\fP .ta \w'copysign'u+4n +\w'gamma.3m'u+4n .sp 5p E exp.3m exponential, logarithm, power L exp.3m exponential, logarithm, power acos sin.3m trigonometric functions acosh asinh.3m inverse hyperbolic functions asin sin.3m trigonometric functions asinh asinh.3m inverse hyperbolic functions atan sin.3m trigonometric functions atanh asinh.3m inverse hyperbolic functions atan2 sin.3m trigonometric functions cabs hypot.3m Euclidean distance, complex absolute value cbrt sqrt.3m square root, cube root ceil floor.3m absolute value, floor, ceiling functions copysign ieee.3m copysign, remainder, exponent manipulations cos sin.3m trigonometric functions cosh sinh.3m hyperbolic functions drem ieee.3m copysign, remainder, exponent manipulations erf erf.3m error functions erfc erf.3m error functions exp exp.3m exponential, logarithm, power fabs floor.3m absolute value, floor, ceiling functions floor floor.3m absolute value, floor, ceiling functions gamma gamma.3m log gamma function hypot hypot.3m Euclidean distance, complex absolute value j0 j0.3m bessel functions j1 j0.3m bessel functions jn j0.3m bessel functions log exp.3m exponential, logarithm, power logb ieee.3m copysign, remainder, exponent manipulations log10 exp.3m exponential, logarithm, power pow exp.3m exponential, logarithm, power scalb ieee.3m copysign, remainder, exponent manipulations sin sin.3m trigonometric functions sinh sinh.3m hyperbolic functions sqrt sqrt.3m square root, cube root tan sin.3m trigonometric functions tanh sinh.3m hyperbolic functions y0 j0.3m bessel functions y1 j0.3m bessel functions yn j0.3m bessel functions .fi