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ptc-44512681-Visitor
1-Visitor
February 8, 2012
Question

X=(1/B)*(y+1/y^2). Solve for y in terms of X and B?

  • February 8, 2012
  • 4 replies
  • 3073 views

I have an equation that looks like this:

X = Y*(1+(1.4/B^2)*(Y/5)^4)^1/2

How do I solve this equation for Y in terms of the other variables?

I've attached my worksheet...

Thanks!

4 replies

V
ViktorKorobov1-Visitor
1-Visitor
February 8, 2012

See in attached file.

V
ValeryOchkov24-Ruby IV
24-Ruby IV
February 8, 2012

ptc-4451268 wrote:

I have an equation that looks like this:

X = Y*(1+(1.4/B^2)*(Y/5)^4)^1/2

How do I solve this equation for Y in terms of the other variables?

Thanks!

The Symbolic Math gives us an absolutely correct and totally useless answer

Why do you not use a numeric math!?

SymMath.png

A
AlanStevens19-Tanzanite
19-Tanzanite
February 8, 2012

With a little prior manipulation this can be written as a cubic in Kic^2, which Mathcad solves easily. See attached.

Alan

P
ptc-44512681-VisitorAuthor
1-Visitor
February 8, 2012

I think these are all good answers, but I've found out the way that suits me best is this:

untitled.JPG

I suppose I should have told you guys that I already knew the other variables

I am still learning, so I am sure I will have more questions.

Thanks!

V
VladimirN24-Ruby III
24-Ruby III
February 9, 2012

It was necessary for you to understand initially what decision you want to receive: symbolically or numerical.

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