matlab解方程组结果中怎么总是有未知量啊?>> [f2,f3]=solve('l000*sin(0)+1250*sin(f2)=sqrt(1000^2+940^2)*sin(f3)+1000','l000*cos(0)+1250*cos(f2)=sqrt(1000^2+940^2)*cos(f3)+940')f2 =asin((2*4709^(1/2)*sin(f3))/125 + 4/5)pi - asin((2*4709^(
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![matlab解方程组结果中怎么总是有未知量啊?>> [f2,f3]=solve('l000*sin(0)+1250*sin(f2)=sqrt(1000^2+940^2)*sin(f3)+1000','l000*cos(0)+1250*cos(f2)=sqrt(1000^2+940^2)*cos(f3)+940')f2 =asin((2*4709^(1/2)*sin(f3))/125 + 4/5)pi - asin((2*4709^(](/uploads/image/z/15249369-57-9.jpg?t=matlab%E8%A7%A3%E6%96%B9%E7%A8%8B%E7%BB%84%E7%BB%93%E6%9E%9C%E4%B8%AD%E6%80%8E%E4%B9%88%E6%80%BB%E6%98%AF%E6%9C%89%E6%9C%AA%E7%9F%A5%E9%87%8F%E5%95%8A%3F%3E%3E+%5Bf2%2Cf3%5D%3Dsolve%28%27l000%2Asin%280%29%2B1250%2Asin%28f2%29%3Dsqrt%281000%5E2%2B940%5E2%29%2Asin%28f3%29%2B1000%27%2C%27l000%2Acos%280%29%2B1250%2Acos%28f2%29%3Dsqrt%281000%5E2%2B940%5E2%29%2Acos%28f3%29%2B940%27%29f2+%3Dasin%28%282%2A4709%5E%281%2F2%29%2Asin%28f3%29%29%2F125+%2B+4%2F5%29pi+-+asin%28%282%2A4709%5E%28)
matlab解方程组结果中怎么总是有未知量啊?>> [f2,f3]=solve('l000*sin(0)+1250*sin(f2)=sqrt(1000^2+940^2)*sin(f3)+1000','l000*cos(0)+1250*cos(f2)=sqrt(1000^2+940^2)*cos(f3)+940')f2 =asin((2*4709^(1/2)*sin(f3))/125 + 4/5)pi - asin((2*4709^(
matlab解方程组结果中怎么总是有未知量啊?
>> [f2,f3]=solve('l000*sin(0)+1250*sin(f2)=sqrt(1000^2+940^2)*sin(f3)+1000','l000*cos(0)+1250*cos(f2)=sqrt(1000^2+940^2)*cos(f3)+940')
f2 =
asin((2*4709^(1/2)*sin(f3))/125 + 4/5)
pi - asin((2*4709^(1/2)*sin(f3))/125 + 4/5)
f3 =
20*4709^(1/2)*cos(f3) - 1250*(1 - ((2*4709^(1/2)*sin(f3))/125 + 4/5)^2)^(1/2) + 940
1250*(1 - ((2*4709^(1/2)*sin(f3))/125 + 4/5)^2)^(1/2) + 20*4709^(1/2)*cos(f3) + 940
我求的就是f3结果里还有f3这不就是给方程复杂化了么?根本也得不出数值啊
matlab解方程组结果中怎么总是有未知量啊?>> [f2,f3]=solve('l000*sin(0)+1250*sin(f2)=sqrt(1000^2+940^2)*sin(f3)+1000','l000*cos(0)+1250*cos(f2)=sqrt(1000^2+940^2)*cos(f3)+940')f2 =asin((2*4709^(1/2)*sin(f3))/125 + 4/5)pi - asin((2*4709^(
function y=eds(f) % 保存为 eds.m 文件
f2=f(1);f3=f(2);
y=[1000*sin(0)+1250*sin(f2)-sqrt(1000^2+940^2)*sin(f3)-1000;
1000*cos(0)+1250*cos(f2)-sqrt(1000^2+940^2)*cos(f3)-940];
-------------------------------------------------------------------------------------
[x,fval,exitflag]=fsolve('eds',[0.1;0.1])
% 超越方程必须用数值解法
% x 为所求的解
%fval为解代入方程的验证结果
% exitflag=1表示函数收敛于解;反之,=0