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

[Wayne Watson]

Thanks, but I think I've got this under control now, and am moving on.

Robert Kern wrote:
> On Mon, Dec 21, 2009 at 13:44, Wayne Watson
> <sierra_mtnview at sbcglobal.net> wrote:
>   
>> Yes, one can get both sin and cos via the interactive shell, if math is
>> imported as you have done.
>> However, I thought math itself always present to a program module?
>>     
>
> No.
>
>   
>>  In
>> my program, sin exists but not cos, so one is forced to use math.cos().
>> Why one but not the other?
>>     
>
> Presumably you have imported it somewhere. Please show your program,
> and we may be able to point it out to you.
>
>   

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

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