HP50G and solving equations with complex numbers

[Gilles]

With the 50g, I do like this :

In Complex approx mode C~
'(X-5)²+3' XSOLVE
{ 'X=(5.000,-1.732)' 'X=(5.000,1.732)' }
or in polar display
{ 'X=(5.292 ∡-19.107)' 'X=(5.292 ∡19.107)' }

In complex exact mode C= :
'(X-5)²+3' XSOLVE
{ 'X=5-i*√3' 'X=5+i*√3' }

To switch C <->|R LShift & I
To switch approx~ <-> exact= RShift & ENTER
Note that ∡ is ALPHA RShift 6