Calculator — windowssystem32calc.exe
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 |
|
Log |
l |
The common (base 10) logarithm. |
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. |