k4walker

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10 years, 208 days

MaplePrimes Activity


These are replies submitted by k4walker

That was a very complete reply, pagan, thank you.  It's good to know I'm not going crazy.

Thanks again,

Kevin

That was a very complete reply, pagan, thank you.  It's good to know I'm not going crazy.

Thanks again,

Kevin

I just tried your latest code snippet, and it still gives me a "solution" that doesn't satisfy the original equation.  What version of Maple are you using?  I'm on Maple 13.  Could be there's a bug that's been fixed.

Thanks for your help,

Kevin

I just tried your latest code snippet, and it still gives me a "solution" that doesn't satisfy the original equation.  What version of Maple are you using?  I'm on Maple 13.  Could be there's a bug that's been fixed.

Thanks for your help,

Kevin

Thanks for the expand/simplify trick, it does help get a cleaner expression.

It still doesn't make that solution from solve work in the original equation.  The original solution was:

{l[1] = l[1], l[4] = l[4], x[2] = x[2], x[3] = arctan(cos(x[2]), sin(x[2]))}

After substitution back into the original equation and doing the simplification you provided, it gives

 -2*sin(x[2])^2*cos(x[2])*(l[1]-l[4])*l[1]*l[4]

for the determinant, which is obviously not zero except for special values of x2, l1 and/or l4 not provided in the solution from solve.

Thanks for the expand/simplify trick, it does help get a cleaner expression.

It still doesn't make that solution from solve work in the original equation.  The original solution was:

{l[1] = l[1], l[4] = l[4], x[2] = x[2], x[3] = arctan(cos(x[2]), sin(x[2]))}

After substitution back into the original equation and doing the simplification you provided, it gives

 -2*sin(x[2])^2*cos(x[2])*(l[1]-l[4])*l[1]*l[4]

for the determinant, which is obviously not zero except for special values of x2, l1 and/or l4 not provided in the solution from solve.

I do have a chunk of processing that goes into forming the model, so I went the savelib/libname route.  This really helps streamline my work for me.

Thanks for all the help!  I really appreciate getting so many responses so quickly.

Kevin

Thanks for the help!
Thanks for the help!
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