HP 39g Graphing Calculator Guia do Utilizador descarregar pdf (Página 140)

10-4 Using mathematical functions

Keyboard functions

The most frequently used functions are available directly from

the keyboard. Many of the keyboard functions also accept

complex numbers as arguments.

>@

,>@,>[@,>@ Add, Subtract, Multiply, Divide. Also accepts complex

numbers, lists and matrices.

value1+ value2, etc.

>6+,)7@e

Natural exponential. Also accepts complex numbers.

e^value

Example

e^5 returns 148.413159103

>OQ@ Natural logarithm. Also accepts complex numbers.

LN(value)

Example

LN(1) returns 0

>6+,)7@10

Exponential (antilogarithm). Also accepts complex numbers.

10^value

Example

10^3 returns 1000

>ORJ@ Common logarithm. Also accepts complex numbers.

LOG(value)

Example

LOG(100) returns 2

>6,1@

,>&26@,>7$1@ Sine, cosine, tangent. Inputs and outputs depend on the

current angle format (Degrees, Radians, or Grads).

SIN(value)

COS(value)

TAN(value)

Example

TAN(45) returns 1 (Degrees mode).

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