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Topic: Wrong Answer
Replies: 1   Last Post: May 1, 2013 3:35 AM

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Chris Arthur

Posts: 28
Registered: 10/4/11
Wrong Answer
Posted: Apr 26, 2013 11:08 PM
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I've discovered that Solve[] gives me the wrong answer for some
polynomial equations. For example, consider the following equation,
which should have exactly one positive, real answer for t.

p:=(px + t vx)^4 + (py + t vy)^4==1

NSolve gives the right answers if I substitute for px,py,vx and vy
before solving. On the other hand, if I use Solve[] this way:


I get a different answer, and it's not correct.
Does Solve[] just malfunction with quartic polynomials or is there
something else happening?


mathematica 5.2


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Chris Arthur
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