The Standard Keypad
(Just
the keypad is shown, the remainder of the calculator is unchanged, Click the
keypad to see the entire calculator and use your Web browser's Back
button to return to this page.)
This keypad is the
typical scientific calculator keypad, with a few surprise additions:
Log: Solves log (base 10) and (Shift+) antilog (10x).
ln: Solve natural log and (Shift+) ex
(exp(x)).
ln+: Computes natural log of( x + 1) and (Shift+) (exp(x)) -1
P:R: Polar to Rectangular, convert polar coordinates to rectangular
coordinates; and (Shift+) Rectangular to
Polar, coordinate conversion function.
Rnd: Round y, x places, (Shift+) Int(x) (integer portion of x),
(Ctrl+) Frac(x) (fractional portion of
x), and (Alt+) is a fraction to decimal conversion function.
N!: Factorial of x.
y^x: solves yx power, (Shift+) 2x power,
(Ctrl+) 2n = x and (Alt+) yn = x, (the last two solve for
n)
%: x% of y, (Shift+) percent difference y to x, and (Ctrl+) ±x% of y.
Öp: Six constants involving the
square root of pi (3.1415..).
Ö: Six constants involving the square
root of 2, 3, and 10.
e: Six constant involving e (2.718....).
p: Eight constants involving pi
(3.1415..). This function is on almost every keypad.
p+, p-, px, p÷: This is a simple math teacher routine for children to practice arithmetic
(+, -, x, and
÷).
WC: Wind Chill calculator, and (Shift+) Heat Index
calculator.
Intr: Compound
Interest Calculator.
S: Statistics (statistical function)
including mean and standard deviation of two data sets. Available
registers are i, Sx, Sy,
Sx2,
Sy2, and Sxy. This
function in conjunction with the P:R (polar to rectangular) function can
be used to perform vector arithmetic.
tax: Easy sales tax computer.
Öx Square root of x. Ctrl+X
from the keyboard.
x²: x squared. Shift+Ctrl+X from the keyboard.
1/x: Reciprocal of x. X from the keyboard.
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Last updated 04/30/2008
