1 | initial version |

Thanks it works!

Here for everyone the code to show it:

`# Solve an equation an use the solution mysol=solve([2+x^2==-1],x) show(mysol) G = x^3-i show(G) newG=G.subs(mysol[0]) show(newG) [G.subs(j) for j in mysol]`

But the trig reduce doesn't work with this code:

`f(x,y)= sin(x)*cos(y)+sin(y)*cos(x) f.trig_reduce() show(f) s1=solve([f(x,y)==1],x,y) show(s1)`

2 | added output of trig |

Thanks it works!

Here for everyone the code to show it:

`# Solve an equation an use the solution mysol=solve([2+x^2==-1],x) show(mysol) G = x^3-i show(G) newG=G.subs(mysol[0]) show(newG) [G.subs(j) for j in mysol]`

But the trig reduce doesn't work with this code:

`f(x,y)= sin(x)*cos(y)+sin(y)*cos(x) f.trig_reduce() show(f) s1=solve([f(x,y)==1],x,y) show(s1)`

I still get (x, y) |--> sin(x)

cos(y) + sin(y)cos(x)

3 | No.3 Revision |

Thanks it works!

Here for everyone the code to show it:

`# Solve an equation an use the solution mysol=solve([2+x^2==-1],x) show(mysol) G = x^3-i show(G) newG=G.subs(mysol[0]) show(newG) [G.subs(j) for j in mysol]`

But the trig reduce doesn't work with this code:

`f(x,y)= sin(x)*cos(y)+sin(y)*cos(x) f.trig_reduce() show(f) s1=solve([f(x,y)==1],x,y) show(s1)`

I still get
~~ ~~(x, y) |--> sin(x)*cos(y) + sin(y)*cos(x)

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