Texas Instruments TI-83 PLUS - Manual (Page 68)

TI-83 Plus Math, Angle, and Test Operations 65
log(, 10^(, ln(
You can use log( (logarithm, « ), 10^( (power of 10, y G ), and ln(
(natural log, µ ) with real or complex numbers, expressions, and lists.
log( value ) 10^( power ) ln( value )
e^( (Exponential)
e^( (exponential, y J ) returns the constant e raised to a power. You
can use e^( with real or complex numbers, expressions, and lists.
e^( power )
e (Constant)
e (constant, y [
e
]) is stored as a constant on the TI-83 Plus . Press
y [
e
] to copy e to the cursor location. In calculations, the TI-83 Plus
uses 2.718281828459 for e .