Student Support Forum: 'NSolve[{ab == 2, a + b == 3}, {a, b}]' topicStudent Support Forum > General > "NSolve[{ab == 2, a + b == 3}, {a, b}]"
| Author |
Comment/Response |
Lino
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 07/30/03 5:42pm
I'm new to Mathematica and I was trying some functions. I tried to NSolve[{ab == 2, a + b == 3}, {a, b}]
the most simple and intuitive solution is: a=1, b=2.
Mathematica returns: {a -> 1.10693, b -> 1.89307}
Why does it choose that solution?
I know that I should ask it to Solve[x^2 - 3x + 2 == 0, x] but I don't know why it doesn't do that automatically.
Is there any technical reason?
By the way..I tried this because I was searching some functions to numerically solve theese simultaneous equations:
{a == 2f, b == 12 - e - g, h == -16 + ab + e, c == -8 + ab, d == -4 + e}
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Subject (listing for 'NSolve[{ab == 2, a + b == 3}, {a, b}]')
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Author |
Date Posted
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 NSolve[{ab == 2, a + b == 3}, {a, b}] |
Lino |
07/30/03 5:42pm |
 Re: NSolve[{ab == 2, a + b == 3}, {a, b}] |
VL |
07/31/03 1:02pm |
| Re: NSolve[{ab == 2, a + b == 3}, {a, b}] |
Forum Modera... |
08/03/03 3:19pm |
| Re: NSolve[{ab == 2, a + b == 3}, {a, b}] |
Lino |
08/04/03 1:20pm |
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