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Texas Instruments TI-84 Plus Silver Edition Manual

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Chapter 2: Math, Angle, and Test Operations 43
Negation
Negation (Ì) returns the negative of value. You can use M with real or complex numbers, expressions,
lists, and matrices. For subtraction, use ¹.
M
value
EOS™ rules (Chapter 1) determine when negation is evaluated. For example, L4
2
returns a negative
number, because squaring is evaluated before negation. Use parentheses to square a negated number,
as in
(L4)
2
.
Note: The negation symbol (M) is shorter and higher than the subtraction sign (N), which is displayed
when you press ¹.
Pi
p (Pi, y B) is stored as a constant. In calculations, 3.1415926535898 is used for p.
MATH Operations
MATH Menu
To display the MATH menu, press .
MATH NUM CMPLX PROB FRAC
1: 4Frac
Displays the answer as a fraction.
2: 4Dec
Displays the answer as a decimal.
3:
3
Calculates the cube.
4:
3
‡(
Calculates the cube root.
*5:
x
‡ Calculates the x
th
root.
6: fMin(
Finds the minimum of a function.
7: fMax(
Finds the maximum of a function.
* 8: nDeriv(
Computes the numerical derivative of a function at a point.
* 9: fnInt(
Computes the numerical integral of a function over an interval.
*0:
summation
)(
Computes the sum of an expression over an index.
* A: logBASE(
Computes the logarithm of a specifed value determined from a
specified base: logBASE(value, base).
… 50 …


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