CASCALC89 COMMAND · NOT ON THE TI-89
▶ln
Rewrites logarithms in an expression in terms of the natural logarithm ln.
Syntax
Expr▶ln
- Group
- Conversions
- Arguments
- Placed after the expression and takes no arguments.
- Origin
- TI-Nspire CAS style command; the TI-89 Titanium handheld does not have it
Example
| Input | Result |
|---|---|
| log(x)▶ln | ln(x)/ln(10) |
Typing log(x)▶ln on the home screen and pressing ENTER returns ln(x)/ln(10).
Related commands
- ▶logbase(Rewrites logarithms in an expression in terms of logarithms to a given base.
- ▶PolarDisplays a vector or complex number in polar form, with length and angle.
- ▶RadConverts an angle to radians.
- ▶RectDisplays a vector or complex number in rectangular form.
- ▶sinRewrites an expression in terms of sine, for example cos(x)^2 as 1−sin(x)^2.
- ▶SphereDisplays a three element vector in spherical form, with length and two angles.
- ▶approxFraction(Converts a decimal value into a fraction that approximates it within a tolerance.
- ▶cosRewrites an expression in terms of cosine, for example sin(x)^2 as 1−cos(x)^2.