Name

Calculator — windowssystem32calc.exe

Synopsis

Start → All Programs → Accessories → Calculator

Data can be entered by clicking the buttons or by pressing keys on the keyboard. All keys have keyboard equivalents; those key mappings that are not quite obvious (such as log) are documented in Table 3-1. Note that many of the functions are available only in Scientific mode (Table 3-2).

Table 3-1. Calculations and keyboard equivalents

Calc button

Keyboard key

Action

C

Esc

Clear all calculations

CE

Del

Clear last entry

Back

Backspace

Clear last digit

MR

Ctrl-R

Display the number stored in memory

MS

Ctrl-M

Store the current value in memory

M+

Ctrl-P

Add the current value to the number stored in memory

MC

Ctrl-L

Clear the Memory

+/-

F9

Change the sign (negative)

Table 3-2. Scientific calculation buttons and keyboard equivalents

Calc button

Keyboard key

Action

Inv

i

Sets the inverse function for sin, cos, tan, Pl, xy, x2, x3, Ln, log, sum, and s.

Hyp

h

Sets the hyperbolic function for sin, cos, and tan.

F-E

v

Turns scientific notation on and off. Can only be used with decimal numbers. Numbers larger than 1015 are always displayed with exponents.

( )

( )

Starts and ends a new level of parentheses. The maximum number of nested parentheses is 25. The current number of levels appears in the box above the ) button.

dms

m

If the displayed number is in degrees, convert to degree-minute-second format. Use Inv + dms to reverse the operation.

Exp

x

The next digit(s) entered constitute the exponent. The exponent cannot be larger than 289. Decimal only.

Ln

n

Natural (base e) logarithm. Inv + Ln calculates e raised to the n th power, where n is the current number.

sin

s

Sine of the displayed number. Inv + sin gives arc sine. Hyp + sin gives hyperbolic sine. Inv + Hyp + sin gives arc hyperbolic sine.

x^y

y

x to the y th power. Inv + x^y calculates the y th root of x.

Log

l

The common (base 10) logarithm. Inv + log yields 10 to the xth power, where x is the displayed number.

Cos

o

Cosine of the displayed number. Inv + cosin gives arc cosine. Hyp + cosin gives hyperbolic cosine. Inv + Hyp + cosin gives arc hyperbolic cosine.

x^3

#

Cubes the displayed number. Inv + x^3 gives the cube root.

n!

!

Factorial of the displayed number.

tan

t

Tangent of the displayed number. Inv + tan gives arc tan. Hyp + tan gives hyperbolic tan. Inv + Hyp + tan gives arc hyperbolic tan.

x^2

@

Squares the displayed number. Inv + x^2 gives the square root.

l/x

r

Reciprocal of displayed number.

Pi

p

The value of pi (3.1415...). Inv + Pi gives 2 × pi.

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