Enter special functions
Updated 18 Sep 2025
You can enter special functions for questions that require symbolic math answers.
About the arguments of special functions
- The argument of a function can be a number, variable, or more complicated math expression.
- Important: When expressing arguments of trigonometric functions, use radians, unless the question asks you to answer in degrees. Tips when answering in radians or degrees
Enter a special function
Type the standard abbreviation in lowercase, according to the following list of available functions.
| For this special function | Enter this from your keyboard OR on a tablet or smartphone, open the  Letters or  Numeric keyboard, as needed |
|---|---|
|
arccosine |
arccos(x), acos(x), or cos^-1(x) |
|
arccotangent |
arccot(x), acot(x), or cot^-1(x) |
|
arccosecant |
arcscs(x), ascs(x), or csc^-1(x) |
|
arcsecant |
arcsec(x), asec(x), or sec^-1(x) |
|
arcsine |
arcsin(x), asin(x), or sin^-1(x) |
|
arctangent |
arctan(x), atan(x), or tan^-1(x) |
|
cosine |
cos(x) |
|
cotangent |
cot(x) |
|
cosecant |
csc(x) |
|
natural exponential function (e = 2.71828...) |
e^x or exp(x) |
|
natural logarithm (base e) |
ln(x) |
|
common logarithm (base 10) |
log(x) |
|
secant |
sec(x) |
|
sine |
sin(x) |
|
tangent |
tan(x) |