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Want to use 'solve' with non symbolic variables

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Chris
Chris 2011-9-30
Lets say I had the equation:
ax^2+bx+c=0 (the real one is more complicated) and I wanted to get numeric solutions for x with given values of a b & c, but these values change constantly in the program. How could I use solve for this.
Thanks,
Chris

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Walter Roberson
Walter Roberson 2011-9-30
syms a b c
soln = matlabFunction(solve(a*x^2+b*x+c,x), 'vars', [a b c]);
Now call soln() passing in your numeric values for a, b, and c.
Warning: watch out for the fact that solve() might return multiple solutions!

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