Re: The derivative of 1

• To: mathgroup at smc.vnet.net
• Subject: [mg117433] Re: The derivative of 1
• From: Alexei Boulbitch <alexei.boulbitch at iee.lu>
• Date: Fri, 18 Mar 2011 06:01:24 -0500 (EST)

```Chop makes the job. Try this:

D[(1 + (1 - Sqrt[x]) (1.574 \[Omega] - 0.176 \[Omega]^2)), x] // Chop

-((1.574 \[Omega] - 0.176 \[Omega]^2)/(2 Sqrt[x]))

Have fun, Alexei

How can I get rid of the inconsequential but bothersome "0." that appears at the beginning of the following result? We are really talking about the derivative of 1.

D[(1 + (1 - Sqrt[x]) (1.574 \[Omega] - 0.176 \[Omega]^2)), x]

0.\[VeryThinSpace]- (1.574 \[Omega] - 0.176 \[Omega]^2)/(2 Sqrt[x])

As an aside, why isn't 0.+whatever equal to whatever?

Thanks

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Alexei Boulbitch, Dr. habil.
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