MaplePrimes - answers and comments on Question, simple addition

convert(%, sin) or convert(%, cos)

Carl Love — Fri, 08 Feb 2013 00:13:57 Z

Try convert(%, sin) or convert(%, cos). Does that give you what you want? If not, could you state more explicitly what is the pattern that you want?

Do you mean one cosine expression?

Christopher2222 — Fri, 08 Feb 2013 03:58:39 Z

So you want the solution to be something like cos( X ) - where X is a collection of some constant, w, t, and theta?

As Carl said, you can't get any more simplified than what you got. Or did you want it as some collection of added cosine terms?

142.3*cos(w*t-theta) + 142.3*cos(w*t+(1/3)*Pi+theta) + 142.3*cos(w*t+theta)
------ ------
2 2

**edit add** I used trigsubs to get the above.

CC:=convert(C,rational)*10/1423:

trigsubs(op(CC)[1])+trigsubs(op(CC)[2])

%*142.3

thanks but convert(%, sin) doesn't work

AliKhan — Fri, 08 Feb 2013 01:19:54 Z

Hi Carl,

I tried convert it simply changes cos to sin, I just need to simply add the two equations which I mentioned before.

Can you just simplify them as much as you can.

Many Thanks

A.Q

Your C is the "simple addition"

Carl Love — Fri, 08 Feb 2013 01:55:05 Z

@AliKhan But what you call C in your original post is the "simple addition" of A and B. Could you write more explicitly the pattern that you want?

Thanks for the replies

AliKhan — Sat, 09 Feb 2013 23:51:55 Z

Guys thanks for the replies. I think I need to check my equation again. Will be back.

Best Regards

A.Q