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Student Support Forum: 'Solve gives root solution instead of real funct...' topicStudent Support Forum > General > "Solve gives root solution instead of real funct..."

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Eric Kulcyk
11/10/12 9:20pm

Hello,

I am very new to Mathimatica. I am trying to solve the equation Solve[D==(w/p*m+1)*(m(d+w)-h)/((m^2-(w/p)^2)*Sqrt[(m^2+1)((W/p)^2+1)],p]

I have values for w,m,d,h, and I input replaced the symbols above with those values. They are all between 0 and 2000. What I expected was a formula for p in terms of D. What I got was a formula that looked like
{{p->Root[123D^15+456D^19]},
{p->Root[789D^15+123D^19]},
{p->Root[432D^15+765D^19]}}

I don't have the exact equations with me, but it looks like it gives me several finite numbers in terms of roots of equations, not a real equation for p based off of D. I think I may just be interpreting this wrong. Can you help me? Thanks,Eric

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Subject (listing for 'Solve gives root solution instead of real funct...')
Author Date Posted
Solve gives root solution instead of real funct... Eric Kulcyk 11/10/12 9:20pm
Re: Solve gives root solution instead of real f... jf 11/11/12 6:19pm
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