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Re: Is there way to use something like Assuming with the function

• To: mathgroup at smc.vnet.net
• Subject: [mg128802] Re: Is there way to use something like Assuming with the function
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• Date: Tue, 27 Nov 2012 03:32:29 -0500 (EST)
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Look at the documentation of Refine. In your example

Refine[Sign[list],a<0]

you will get the expected answer because

Refine[Sign[a], a < 0]

returns -1.


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Carlos César de Araújo
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