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NSolve output
Posted:
Jan 12, 2013 9:51 PM


Hello,
I want to solve two simple equations with NSOLVE to calculate the dimensions of a rectangular box that is open on top. The length of the box is twice the width and the volume and area of the box are respectively 40 cubic feet and 60 square feet.
I defined the area and volume: a = xz + 2xy + 2yz v = xyz
then substituted x with 2z:
a2 = a /. x>2z v2 = v /. x>2z
a2 = 6 y z + 2 z^2 v2 = 2 y z^2
solved with NSolve: step1 = NSolve[{a2 == 60, v2 == 40}, {y, z}, Reals] [[1,2]] //Column
which returns the results {y>3.05701,z>2.5578}
I would like to get an output that returns values for all 3 variables x,y,z as in
{x>5.1156,y>3.05701,z>2.5578}
but somehow cannot find a way to do it
What would be the correct way for doing that?
Regards
Berthold Hamburger



