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complicated cas problem
11-21-2017, 05:42 PM
Post: #5
RE: complicated cas problem
Won't cas give you results in terms of the unknowns?
I do describe them as functions f1(x) and f2(x), with the unknowns x,y,z,n.

Then I tried to give n and z values, and it still didn't give me any results.

I actually have 2 equations/functions....f1(x) and f2(x)

f1(x) = y = atan(cot(pi*x))/pi + x - 1/2
f2(x) = y = (z^n - x^n)^1/n

Look at the examples for the help for solve. It does solve for 3 variables with 2 equations....
solve([x^2-y^2=0 x^2-z^2=0],[x y z]) ->
{[x x x],[x -x -x],[x x -x],[x -x x]}

So, I tried to simplify the problem a bit with:

f(x):=atan(cot(pi*x))/pi+x-1/2
g(x):=(25-x^2)^(1/2)
solve(f(x)=g(x),x)

and I get an error, as it gives me a blank matrix.

Also, I tried this:

f:=atan(cot(pi*x))/pi+x-1/2
g:=(25-x^2)^(1/2)

I thought that doing this should be the same as f(x):=, but it gave me a different result when I tried:

solve(f=g,x)

....it said that it was evaluating pi(x) instead of multiplying....and gave me an error????

Please try this out...someone familiar with CAS.
Thx
-Donald
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Messages In This Thread
complicated cas problem - webmasterpdx - 11-21-2017, 02:56 PM
RE: complicated cas problem - parisse - 11-21-2017, 03:09 PM
RE: complicated cas problem - webmasterpdx - 11-21-2017, 04:07 PM
RE: complicated cas problem - parisse - 11-21-2017, 04:28 PM
RE: complicated cas problem - webmasterpdx - 11-21-2017 05:42 PM
RE: complicated cas problem - webmasterpdx - 11-21-2017, 06:19 PM
RE: complicated cas problem - Arno K - 11-21-2017, 08:29 PM



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