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Re: rookie code issue

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  • Subject: [mg130215] Re: rookie code issue
  • From: James Stein <mathgroup at stein.org>
  • Date: Thu, 21 Mar 2013 00:56:30 -0400 (EDT)
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  • References: <20130320082258.D93A969F1@smc.vnet.net>

Use this:

Which[m === Sin, 5, m === Cos, 2]

and read up on the difference between '==' and '==='

On Wed, Mar 20, 2013 at 1:22 AM, <robholman at gmail.com> wrote:

> Hi folks:
>
> I'm working on a bit of code in which I want students to choose a trig
> function from a drop-down menu, and then from there have some choices for
> viewing the graph. All is working fine except for one thing. There are a
> couple of constants that depend on the function they choose from the menu,
> and I'm trying to define the constant based on their choice for f. The
> basic issue I'm having boils down to the following question:
>
> Why doesn't the following code return a 2?
>
>
> m = Cos;
> Which[m == Sin, 5, m == Cos, 2]
>
>
>
> Thanks for the help!
>
> Rob
>
>


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