Solving factorial equation with integer variables: Empty sym 0-by-1
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I want to solve the equation
by MATLAB.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/736704/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/736709/image.png)
So I have tried
syms x y integer
eqn=gamma(y+1)/(gamma(x-1)*gamma(y-x+1))==gamma(1341)/(gamma(660)*gamma(680));
[xsol,ysol]=solve(eqn,[x y])
but it gives me xsol = Empty sym: 0-by-1, ysol = Empty sym: 0-by-1.
How can I fix it?
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回答(1 个)
Alan Stevens
2021-9-14
Set x-2 = 659 and y-x = 679 for one solution,
and x-2 = 679 and y-x = 659 for another.
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