- #1
jforeman83
- 4
- 0
Hey, everybody.
I have a function:
[tex]
\int\limits_{x}^{x+c} exp(-t^2) dt = y
[/tex]
c is a known constant here.
I am beating my head against the wall trying to find a good way to numerically evaluate the inverse here, i.e. I have y and c and I want to know x. I know that erf^-1 is readily available in mathematica and maple and the like but the limits of integration here make this a bit nastier. Any ideas? I don't need a perfect evaluation, just a moderately good approximation will work.
I have a function:
[tex]
\int\limits_{x}^{x+c} exp(-t^2) dt = y
[/tex]
c is a known constant here.
I am beating my head against the wall trying to find a good way to numerically evaluate the inverse here, i.e. I have y and c and I want to know x. I know that erf^-1 is readily available in mathematica and maple and the like but the limits of integration here make this a bit nastier. Any ideas? I don't need a perfect evaluation, just a moderately good approximation will work.