Calculator

Calculator

\ windows \system32\calc.exe

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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, x y , x 2 , x 3 , 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 10 15 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 x th 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 x pi.