## 937 Reputation

11 years, 349 days

## Thanks...

@Kitonum That works quitew well.

## That Worked...

@Thomas Richard  Thank You

## Indeed: How to prove?...

Well I can't see a way. I was oringinaly asking hopeing maple could automatically reduce the answer. The original problem was to do with a problem in Rational Trigonometry. I wandered off into the weeds working it out (with the help of Maple) as my answer shows. Here is a link to how the solution is arrived at http://www.youtube.com/watch?v=FsQb0_Lgphc&list=PL3C58498718451C47 . I guess one would need to evaluate/ relate both solutions and see how one  relates to the other. I don't have a tidy worksheet that is worth posting. I could do one though.

## Indeed: How to prove?...

Well I can't see a way. I was oringinaly asking hopeing maple could automatically reduce the answer. The original problem was to do with a problem in Rational Trigonometry. I wandered off into the weeds working it out (with the help of Maple) as my answer shows. Here is a link to how the solution is arrived at http://www.youtube.com/watch?v=FsQb0_Lgphc&list=PL3C58498718451C47 . I guess one would need to evaluate/ relate both solutions and see how one  relates to the other. I don't have a tidy worksheet that is worth posting. I could do one though.

## worksheet...

 (1)

 (2)

 (3)

 (4)

Look like worksheet didn't attach. "nd try

## Question on the variable order...

In the definition of spherical coords the order is r, theta , phi

,

in the definition of the Vector field the order is r, phi ,theta

Why is this?

## Question on the variable order...

In the definition of spherical coords the order is r, theta , phi

,

in the definition of the Vector field the order is r, phi ,theta

Why is this?

## Great!...

Thank you. That is a great help. Got something to work with now.

## Great!...

Thank you. That is a great help. Got something to work with now.

## Can you upload a work sheet...

It would help is you could upload a worksheet. If the equations are polynomial or can be converted to polynomial try Groebner analysis.

## It looks like part of the equation is mi...

It looks like part of the equation is missing at the end of the first line.

## op(op( ))...

Thanl you .

So simple when you know. What is  op(op(%)) supposed to do? It works fine without it.

## op(op( ))...

Thanl you .

So simple when you know. What is  op(op(%)) supposed to do? It works fine without it.

## Efficiency...

Thank you. I didn't know about the blank having such an effect. a bit of history. The Xs are the real roots of a 20th oder polynomial which garunteed the Ys real, so that's what started of the lists idea. With hind sight I should have probably have put all teve valuse in a 20X6 table and then deleted rows accordingly. As the complex numbers( a,b,c) were being genarated by arcsin(x) iI got around the problem be checking |x|<=1.

## Efficiency...

Thank you. I didn't know about the blank having such an effect. a bit of history. The Xs are the real roots of a 20th oder polynomial which garunteed the Ys real, so that's what started of the lists idea. With hind sight I should have probably have put all teve valuse in a 20X6 table and then deleted rows accordingly. As the complex numbers( a,b,c) were being genarated by arcsin(x) iI got around the problem be checking |x|<=1.

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