FSOLVE

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Revision as of 17:22, 27 September 2024 by Jrheinlaender (talk | contribs) (Created page with "{{Keyword | <code>FSOLVE (equation, symbol, number, number )</code> | Numerically solve the equation for the symbol. It is assumed that the soluation lies between the lower and upper bounds given as arguments. A Newton-Raphson algorithm is used. | 3= <code>EQDEF 192 x^{6} - 512 sqrt{3} x^{5} + 1104 x^{4} - 384 sqrt{3} x^{3} + 132 x^{2} - 1 = 0</code> <code>EQDEF FSOLVE(@prev@, x, -0.2, -0.05)</code> This will find the solution <code>x = -0.073145130133...")
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Syntax

FSOLVE (equation, symbol, number, number )


Implemented in iMath since version 2.3.6.

Explanation

Numerically solve the equation for the symbol. It is assumed that the soluation lies between the lower and upper bounds given as arguments. A Newton-Raphson algorithm is used.


Example

EQDEF 192 x^{6} - 512 sqrt{3} x^{5} + 1104 x^{4} - 384 sqrt{3} x^{3} + 132 x^{2} - 1 = 0

EQDEF FSOLVE(@prev@, x, -0.2, -0.05)

This will find the solution x = -0.073145130133813430764

See also

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