.\"return the arccosine of a float
.DT
acos
$MUDNAME$ driver help
acos

.SH Name
.SI 5
acos() - return the arccosine of a float
.EI

.SH Synopsis
.SI 5
float acos( float f );
.EI

.SH Description
.SP 5 5
Returns the arccosine of its argument, `f', measured in radians.
.EP

.SH See also
.SI 5
asin(), atan(), cos(), sin(), tan()
.EI
