作业帮如何用matlab计算下列函数?我将下面这个输入matlab中后,[x,y] = solve('72.8*(1+cos(120.1/180*pi)) = 2*sqrt(21.8*x)+2*sqrt(51*y)','48.0*(1+cos(81.4/180*pi)) = 2*sqrt(29.0*x)+2*sqrt(19.0*y)'),提示我：x =[ empty sym ]y =[]请问怎么
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![如何用matlab计算下列函数?我将下面这个输入matlab中后,[x,y] = solve('72.8*(1+cos(120.1/180*pi)) = 2*sqrt(21.8*x)+2*sqrt(51*y)','48.0*(1+cos(81.4/180*pi)) = 2*sqrt(29.0*x)+2*sqrt(19.0*y)'),提示我：x =[ empty sym ]y =[]请问怎么](/uploads/image/z/5166646-70-6.jpg?t=%E5%A6%82%E4%BD%95%E7%94%A8matlab%E8%AE%A1%E7%AE%97%E4%B8%8B%E5%88%97%E5%87%BD%E6%95%B0%3F%E6%88%91%E5%B0%86%E4%B8%8B%E9%9D%A2%E8%BF%99%E4%B8%AA%E8%BE%93%E5%85%A5matlab%E4%B8%AD%E5%90%8E%2C%5Bx%2Cy%5D+%3D+solve%28%2772.8%2A%281%2Bcos%28120.1%2F180%2Api%29%29+%3D+2%2Asqrt%2821.8%2Ax%29%2B2%2Asqrt%2851%2Ay%29%27%2C%2748.0%2A%281%2Bcos%2881.4%2F180%2Api%29%29+%3D+2%2Asqrt%2829.0%2Ax%29%2B2%2Asqrt%2819.0%2Ay%29%27%29%2C%E6%8F%90%E7%A4%BA%E6%88%91%EF%BC%9Ax+%3D%5B+empty+sym+%5Dy+%3D%5B%5D%E8%AF%B7%E9%97%AE%E6%80%8E%E4%B9%88)
如何用matlab计算下列函数?我将下面这个输入matlab中后,[x,y] = solve('72.8*(1+cos(120.1/180*pi)) = 2*sqrt(21.8*x)+2*sqrt(51*y)','48.0*(1+cos(81.4/180*pi)) = 2*sqrt(29.0*x)+2*sqrt(19.0*y)'),提示我：x =[ empty sym ]y =[]请问怎么
如何用matlab计算下列函数?
我将下面这个输入matlab中后,[x,y] = solve('72.8*(1+cos(120.1/180*pi)) = 2*sqrt(21.8*x)+2*sqrt(51*y)','48.0*(1+cos(81.4/180*pi)) = 2*sqrt(29.0*x)+2*sqrt(19.0*y)'),提示我：
x =
[ empty sym ]
y =
[]
请问怎么解决?
如何用matlab计算下列函数?我将下面这个输入matlab中后,[x,y] = solve('72.8*(1+cos(120.1/180*pi)) = 2*sqrt(21.8*x)+2*sqrt(51*y)','48.0*(1+cos(81.4/180*pi)) = 2*sqrt(29.0*x)+2*sqrt(19.0*y)'),提示我：x =[ empty sym ]y =[]请问怎么
Explicit solution could not be found.
解不出来 解析解
可以数值解
help fsolve
ezplot('72.8*(1+cos(120.1/180*pi))-2*sqrt(21.8*x)-2*sqrt(51*y)',[0 40 0 40])
hold on
ezplot('48.0*(1+cos(81.4/180*pi)) -2*sqrt(29.0*x)-2*sqrt(19.0*y)',[0 40 0 40])
画图看了看 没有实数解