Logarithm And Exponential Functions; Numeric Derivative - Texas Instruments TI-36X Pro User Manual

Logarithm and exponential functions

C (multi-tap keys)
D
D yields the logarithm of a number to the base e
(e ≈ 2.718281828459).
D D yields the common logarithm of a number.
C raises e to the power you specify.
C C raises 10 to the power you specify.
Examples
LOG
LN
›
10
›
e

Numeric derivative

% A
% A calculates an approximate derivative of
expression with respect to variable, given the value at
which to calculate the derivative and H (if not specified, the
default is 1 M3). This function is valid only for real numbers.
E
D D1 ) <
D 5 ) V 2 <
-
C CD D
2 ) <
D DC C
5 " ) <
-
C .5 <
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