How can I do this in Mathcad?

[ptc-4885191]

Hi,

I am a Maple user and trying to learn Mathcad.

I wrote a couple equations and want to combine those trigonometric functions.

You can see what I am doing in the attached PDF file.

How can I do the same thing in Madthcad?

Thanks,

Luo

[Fred_Kohlhepp]

You can do some of it. I don't know how to split out the coefficients.

Remember: Mathcad is primarily a NUMERICAL processor, with an abreviated symbolic processor attached.

[ptc-4885191]

Your "expand" operator is not what the "combine" in Maple does. If you read the "combine" result in Maple carefully, you can see it does a lot more than just expand it. Maple get rid of all the high order terms of sine and cosine and convert them all into first order, something like cos(2w1-w2). This very useful in engineering in that it shows how the frequency mixing. Do you know how to do that in Mathcad?

Thanks

[Fred_Kohlhepp]

No

[RichardJ]

See the attached

[ptc-4885191]

Thanks Richard, this is what I am looking for.

[AndyWesterman]

Alvaro gave a very useful function in this link (its the 'helpful answer')

http://communities.ptc.com/message/153247#153247

Regards

Andy