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Mathcad 12 simple problem

Hello,

I just installed Mathcad 12 for some simple timming pulley calculations. I get the software to be stuck in some wierd calculation loop that seem to take forever when I use PI (Greek letter) constant.

If I redifine the PI value myself I get a warning from Mathcad ("This expression redefines a Mathcad built-in constant") but the calculation gets done.

Exemple:

a := sin(PI)

a =

Am I doing something wrong?

Thanks in adavance for all the help.

Manuel Silva
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Is that a reason for the software to freeze?
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The problem must have something to do with Mathcad 12 installation. I tested the above example in Mathcad 13 and it returned a = 0 as expected.

About the former problem. There were no divisions by zero. The above above example were the only expressions on the worksheet. I was asking for a numerical calculation. When I redefined PI value I got a result as precise as the PI value aproximation suplied. I got a = 0.

Thanks for your cooperation. I split the points between you two.