matlab 三角函数组解这个方程组:最后要求出x(1)和x(2),l1*cosd(thed1)+l2*cosd(x(1))-l4*0.222-l3*cosd(x(2))=0l1*sind(thed1)+l2*sind(x(1))-l4*0.975-l3*sind(x(2))=0已知条件:l1=49.287;l2=223.1828;l3=100;l4=225.61;t=0:0.1:3;th
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![matlab 三角函数组解这个方程组:最后要求出x(1)和x(2),l1*cosd(thed1)+l2*cosd(x(1))-l4*0.222-l3*cosd(x(2))=0l1*sind(thed1)+l2*sind(x(1))-l4*0.975-l3*sind(x(2))=0已知条件:l1=49.287;l2=223.1828;l3=100;l4=225.61;t=0:0.1:3;th](/uploads/image/z/5240261-29-1.jpg?t=matlab+%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0%E7%BB%84%E8%A7%A3%E8%BF%99%E4%B8%AA%E6%96%B9%E7%A8%8B%E7%BB%84%EF%BC%9A%E6%9C%80%E5%90%8E%E8%A6%81%E6%B1%82%E5%87%BAx%EF%BC%881%EF%BC%89%E5%92%8Cx%EF%BC%882%EF%BC%89%2Cl1%2Acosd%28thed1%29%2Bl2%2Acosd%28x%281%29%29-l4%2A0.222-l3%2Acosd%28x%282%29%29%3D0l1%2Asind%28thed1%29%2Bl2%2Asind%28x%281%29%29-l4%2A0.975-l3%2Asind%28x%282%29%29%3D0%E5%B7%B2%E7%9F%A5%E6%9D%A1%E4%BB%B6%EF%BC%9Al1%3D49.287%3Bl2%3D223.1828%3Bl3%3D100%3Bl4%3D225.61%3Bt%3D0%3A0.1%3A3%3Bth)
matlab 三角函数组解这个方程组:最后要求出x(1)和x(2),l1*cosd(thed1)+l2*cosd(x(1))-l4*0.222-l3*cosd(x(2))=0l1*sind(thed1)+l2*sind(x(1))-l4*0.975-l3*sind(x(2))=0已知条件:l1=49.287;l2=223.1828;l3=100;l4=225.61;t=0:0.1:3;th
matlab 三角函数组
解这个方程组:最后要求出x(1)和x(2),
l1*cosd(thed1)+l2*cosd(x(1))-l4*0.222-l3*cosd(x(2))=0
l1*sind(thed1)+l2*sind(x(1))-l4*0.975-l3*sind(x(2))=0
已知条件:l1=49.287;
l2=223.1828;
l3=100;
l4=225.61;
t=0:0.1:3;
thed1=600*t;
matlab 三角函数组解这个方程组:最后要求出x(1)和x(2),l1*cosd(thed1)+l2*cosd(x(1))-l4*0.222-l3*cosd(x(2))=0l1*sind(thed1)+l2*sind(x(1))-l4*0.975-l3*sind(x(2))=0已知条件:l1=49.287;l2=223.1828;l3=100;l4=225.61;t=0:0.1:3;th
matlab代码如下:
syms t
l1=49.287;
l2=223.1828;
l3=100;
l4=225.61;
thed1=600*t;
eq1='l1*cosd(thed1)+l2*cosd(x1)-l4*0.222-l3*cosd(x2)=0';
eq2='l1*sind(thed1)+l2*sind(x1)-l4*0.975-l3*sind(x2)=0';
solve(eq1,eq2,'x1','x2')
解出来的结果如下:
Warning:Explicit solution could not be found.
> In solve at 98
In Untitled4 at 9
ans =
[ empty sym ]
说明这个方程比较复杂,matlab无法解出其符号解(解析解)形式.
把t=0:0.1:3,甚至令t=3,都没有能解出其数值解.
不会
sind,cosd是什么?