mathematica计算方程问题In[2]:= {M,t} = {19311.22,0.005}Out[2]= {19311.2,0.005}In[7]:= Solve[{M/((b*h\[Wedge]2)/ 6 - (h - 2*t)\[Wedge]3*(b - 2*t)/(6*h)) == 160000000, h == 1.5*b},{h,b}]\:6B63\:5728\:8BA1\:7B97In[7]:= Solve::inex:Solve

mathematica计算方程问题In[2]:= {M,t} = {19311.22,0.005}Out[2]= {19311.2,0.005}In[7]:= Solve[{M/((b*h\[Wedge]2)/ 6 - (h - 2*t)\[Wedge]3*(b - 2*t)/(6*h)) == 160000000, h == 1.5*b},{h,b}]\:6B63\:5728\:8BA1\:7B97In[7]:= Solve::inex:Solve
mathematica计算方程问题

In[2]:= {M,t} = {19311.22,0.005}


Out[2]= {19311.2,0.005}


In[7]:= Solve[{M/((b*h\[Wedge]2)/
       6 - (h - 2*t)\[Wedge]3*(b - 2*t)/(6*h)) == 160000000, 
  h == 1.5*b},{h,b}]


\:6B63\:5728\:8BA1\:7B97In[7]:= Solve::inex:Solve 无法求解具有不精确系数的系统,或是通过将系统中出现的不精确数直接合理化处理得到的系统.由于 Solve 所用的许多方法需要精确输入,为 Solve 提供一个精确版本的系统可能会有帮助.>>


Out[7]= Solve[{19311.2/(-(((-0.01 + b) (-0.01 + h)\[Wedge]3)/(
     6 h)) + (b h\[Wedge]2)/6) == 160000000,h == 1.5 b},{h,b}]
为什么不能计算呢?

mathematica计算方程问题In[2]:= {M,t} = {19311.22,0.005}Out[2]= {19311.2,0.005}In[7]:= Solve[{M/((b*h\[Wedge]2)/ 6 - (h - 2*t)\[Wedge]3*(b - 2*t)/(6*h)) == 160000000, h == 1.5*b},{h,b}]\:6B63\:5728\:8BA1\:7B97In[7]:= Solve::inex:Solve
乘方的符号不是\[Wedge]而是^,也就是英文键盘的Shift+6