CASCALC89 COMMAND · NOT ON THE TI-89
erfi(
Returns the imaginary error function of a value.
Syntax
erfi(expr)
- Group
- Special functions
- Arguments
- Takes one value or expression.
- Availability
- Included
- Origin
- TI-Nspire CAS style command; the TI-89 Titanium handheld does not have it
Example
| Input | Result |
|---|---|
| erfi(0) | 0 |
Typing erfi(0) on the home screen and pressing ENTER returns 0.
Related commands
- fresnelC(Returns the Fresnel cosine integral of a value.
- fresnelS(Returns the Fresnel sine integral of a value.
- gamma(Returns the gamma function of a value; for a positive integer n, gamma(n) equals (n−1)!.
- gammaInc(Returns the incomplete gamma function of a and x.
- li(Returns the logarithmic integral of a value.
- polylog(Returns the polylogarithm of order n of a value.
- Shi(Returns the hyperbolic sine integral of a value.
- Si(Returns the sine integral of a value.