## 1157 Reputation

12 years, 135 days

## Exactly what i needed...

@vv Thank you. worled well!

## This is what I meant....

@Markiyan Hirnyk What I mean't was e.g (form one of the answers supplied)

I wish to see what the Basis equations contain in terms of the produsts of the variables.

## A bit more on extending the principle...

@nutnutman Firstly "vv 575" substitution method is really excellent. I decided to try a bit more complex too. Higher order derivatives and mixed derivatives. I looked at the link you provided, I didn't have a clue either. Have not used the substitution method here but it could be applied.

The Next 2 lines are just testing

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## Nice One...

@vv Never thought of "subs" and being able to add them that way.

## Thank you...

@Carl Love That is a point I wasn't sure about myself.

## You have to put some work in....

What I posted was just an idea. Don't really know what you are doing. Post a work sheet (as I did) with a more complex example. That might encourage others to look at the problem. Nobody wants to retype complex formulas.

## Solidworks Version...

I am using Maple 18. Documentation says Solidworks 2013 required. I am on SW 2015. Connection won't open. Have you access to SW 2013?

## 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...

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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.

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