Re: Help needed with csolve function on the 92
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Re: Help needed with csolve function on the 92
Alexis wrote:
>
> Hello !
>
> Yesterday I had to solve the following equation :
> (-3+i)x2+(5i-1)x+2=0
> I tried it with the csolve fucntion and all I got was an approximation. I
> thus tried to use the well known quadratic formula within a function
> (-b+/-sqr(b2-4ac)/2a) and I got the exact answer. How is that possible ?
> Doesn't the 92 use this formula to solve that kind of equation ?
I'm pretty sure the 92 doesn't use the quadratic formula for csolve
because the equations one can enter into csolve don't have to be
quadratic. Maybe if you had used czeros you might have gotten an exact
answer.
Notrub
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