CASCALC89 COMMAND · NOT ON THE TI-89
Chi(
Returns the hyperbolic cosine integral of a value.
Syntax
Chi(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 |
|---|---|
| Chi(1.) | 0.83786694098 |
Typing Chi(1.) on the home screen and pressing ENTER returns 0.83786694098.
Related commands
- Ci(Returns the cosine integral of a value.
- dilog(Returns the dilogarithm of a value; dilog(1) is π^2/6.
- Ei(Returns the exponential integral of a value.
- erf(Returns the error function of a value, which is closely related to the normal distribution.
- erfc(Returns the complementary error function, 1 minus erf of the value.
- erfi(Returns the imaginary error function of a value.
- fresnelC(Returns the Fresnel cosine integral of a value.
- fresnelS(Returns the Fresnel sine integral of a value.