CASCALC89 COMMAND · NOT ON THE TI-89
root(
Returns the n-th root of a value, for example the cube root for n=3.
Syntax
root(value, n)
- Group
- Number functions
- Arguments
- Takes the value and the index n of the root.
- Availability
- Included
- Origin
- TI-Nspire CAS style command; the TI-89 Titanium handheld does not have it
Example
| Input | Result |
|---|---|
| root(27,3) | 3 |
Typing root(27,3) on the home screen and pressing ENTER returns 3.
Related commands
- round(Rounds a value to a given number of decimal places.
- sign(Returns the sign of a value: 1 for positive and −1 for negative numbers.
- √(Returns the square root of a value.
- abs(Returns the absolute value of a number, or the modulus of a complex number.
- angle(Returns the argument of a complex number, the angle of its point in the complex plane.
- ans(Recalls a previous answer from the home screen history: ans(1) is the last answer, ans(2) the one before.
- ceiling(Returns the smallest integer that is greater than or equal to a value.
- conj(Returns the complex conjugate of a number, with the sign of the imaginary part changed.