Simplification

108 days ago by bennettmeredith

f(x,y)=x/(x^2+y^2) 
       
(f(x,y).diff(x,2)+f(x,y).diff(y,2)).simplify_full() 
        
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g(x,y)=x^2/(x^2+y^2) 
       
(g(x,y).diff(x,2)+g(x,y).diff(y,2)).simplify_full() 
        
-2*(x^2 - y^2)/(x^4 + 2*x^2*y^2 + y^4)
-2*(x^2 - y^2)/(x^4 + 2*x^2*y^2 + y^4)