in MMA : how to get the variable values by solving one equation directly?
In Mathematica, I want to get the variable values by solving one equation directly, this means: I have the equation
if we finally want to get the value , we need to solve the above equation firstly to get , so in Mathematica
but now we directly compute the ,
so we can see that it doesn’t do anything (our aim is to substitute into ).
Now we give the solution