solve a system of nonlinear equations + partial derivatives
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Hello
I am a beginner in Matlab, I would like to solve a system of nonlinear equations which contains equations with partial derivatives
r=x^2+y^2+z^2+w^2
find x , y , z , w
dr/dx+dr/dy+dr/dz+dr/dw =0
((5.3)-(x+23.5))^2+((11.4)-(y+12.8))^2-18^2=0;
((5.3)-(z+7.3))^2+((11.4)-(w+6.7))^2-36=0;
((x+23.5)-(z+7.3))^2+((y+12.8)-(w+6.7))^2-36-18^2=0
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답변 (1개)
Torsten
2022년 3월 16일
I would like to solve a system of nonlinear equations which contains equations with partial derivatives
If you evaluate dr/dx, dr/dy, dr/dz and dr/dw, you get a fourth algebraic equation.
This system of 4 algebraic equations in 4 unknowns can be solved using "fsolve".
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