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x
缺少解
q8 a& Z+ g! O" y
0 E% v, m0 i% ^. x# ]7 J- function[x,fval,exitflag]=fsolveDemo1
- x0=[0,0,0];
- options=optimset('MaxFunEvals',0,'MaxIter',3);
- [x,fval,exitflag]=fsolve(@f,x0);
- function F =f(x)
- F=[x(1)/4-x(2)/4; x(2)/4-(x(3)-2)/-2; x(1)^2+x(2)^2-4];
- end
- end/ a: F' N; B: y6 P. [' l6 t0 G
0 a1 d4 G5 L6 k& w8 F6 U9 ` _[color=rgb(51, 102, 153) !important]复制代码
. O9 R9 m& v" Y$ p) R, W- %显示
- Equation solved.
- fsolve completed because the vector of function values is near zero
- as measured by the default value of the function tolerance, and
- the problem appears regular as measured by the gradient.
- <stopping criteria details>
- x =
- 1.4142 1.4142 1.2929
- fval =
- 1.0e-08 *
- 0
- 0.0000
- 0.3873
- exitflag =
- 1
- >> 2-1.414/2
- ans =
- 1.2930
- >>/ Y, ~/ b) i* _" z
" l9 [0 Y) V! {[color=rgb(51, 102, 153) !important]复制代码5 ] K( `" m0 I
其中x 的解只是其中的一个,另一个为什么没有显示?( p" K" R1 Y) S- ]; k9 J; P+ U
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