2.4 Math, Angle, and Test Operations
82STAT~4.DOC TI-83 international English Bob Fedorisko Revised: 10/28/05 12:19 PM Printed: 10/28/05 12:20
PM Page 4 of 26
82STAT~4.DOC TI-83 international English Bob Fedorisko Revised: 10/28/05 12:19 PM Printed: 10/28/05 12:20
PM Page 4 of 26
You can use log( (logarithm, «), 10^( (power of 10, y
[
10
x
]), and ln( (natural log, µ) with real or complex numbers,
expressions, and lists.
log(value) 10^(power) ln(value)
e^(
(exponential, y ãe
x
]) returns the constant e raised to a
power. You can use
e^( with real or complex numbers,
expressions, and lists.
e^(power)
e (constant, y [e]) is stored as a constant on the TI-82 STATS
. Press y [
e] to copy e to the cursor location. In calculations,
the TI-82 STATS uses 2.718281828459 for
e.
M (negation, Ì) returns the negative of value. You can use M
with real or complex numbers, expressions, lists, and matrices.
Mvalue
EOS rules (Chapter 1) determine when negation is evaluated.
For example,
LA
2
returns a negative number, because squaring is
evaluated before negation. Use parentheses to square a negated
number, as in
(LA)
2
.
Note: On the TI-82 STATS, the negation symbol (M) is shorter and
higher than the subtraction sign (N), which is displayed when you
press ¹.
p (Pi, y [p]) is stored as a constant in the TI-82 STATS. In
calculations, the TI-82 STATS uses 3.1415926535898 for
p.
Keyboard Math Operations (continued)
log(,
10^(,
ln(
e^( (Exponential)
e (Constant)
L (Negation)
p (Pi)
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