[Numpy-discussion] cos -- NameError: global name 'cos' is not defined

[Wayne Watson]

In this code,
===========start
import math
import numpy as np
from numpy import matrix
def sinD(D): # given in degrees, convert to radians
    return sin(radians(D))
def cosD(D):
    return cos(radians(D))   <<--------------
def acosD(D):
    acos(radians(D)) 
    return=====end
the << line produces, "NameError: global name 'cos' is not defined", but 
the sin() above it does not? They are both built-in functions.


-- 
           Wayne Watson (Watson Adventures, Prop., Nevada City, CA)

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