Name

acos()

Examples
a = PI
c = cos(a)
ac = acos(c)
# Prints "3.1415927 : -1.0 : 3.1415927"
print("%.7f : %.1f : %.7f" % (a, c, ac))
a = PI + PI/4.0
c = cos(a)
ac = acos(c)
# Prints "3.926991 : -0.70710665 : 2.3561943"
print("%.6f : %.8f : %.7f" % (a, c, ac))
Description The inverse of cos(), returns the arc cosine of a value. This function expects the values in the range of -1 to 1 and values are returned in the range 0 to PI (3.1415927).
Syntax
acos(value)
Parameters
valuefloat: the value whose arc cosine is to be returned
Related cos()
asin()
atan()
Updated on Tue Jul 11 06:52:23 2017.
Creative Commons License