Recalls the number stored in memory. The number remains in memory.
MS
Stores the displayed number in memory.
M+
Adds the displayed number to any number already in memory but does not display the sum of these numbers.
Hex
Converts the displayed number to the hexadecimal number system.
Dec
Converts the displayed number to the decimal number system.
Oct
Converts the displayed number to the octal number system.
Bin
Converts the displayed number to the binary number system.
F-E
Turns scientific notation on and off. You can use "F-E" only with the decimal number system.
dms
Converts the displayed number to degree-minute-second format (assuming that the displayed number is in degrees). To convert the displayed number to degrees (assuming that the displayed number is in degree-minute-second format), use "Inv " + "dms". You can use dms only with the decimal number system.
sin
Calculates the sine of the displayed number. To calculate the arc sine, use Inv+sin. To calculate the hyperbolic sine, use "Hyp" + "sin". To calculate the arc hyperbolic sine, use "Inv" + "Hyp" + "sin". You can use sin only with the decimal number system.
cos
Calculates the cosine of the displayed number. To calculate the arc cosine, use "Inv" + "cos". To calculate the hyperbolic cosine, use "Hyp" + "cos". To calculate the arc hyperbolic cosine, use "Inv" + "Hyp" + "cos". You can use "cos" only with the decimal number system.
tan
Calculates the tangent of the displayed number. To calculate the arc tangent, use Inv+tan. To calculate the hyperbolic tangent, use "Hyp" + "tan". To calculate the arc hyperbolic tangent, use "Inv" + "Hyp" + "tan". You can use tan only with the decimal number system.
sqrt
Calculates the square root of the displayed number.
%
Displays the result of multiplication as a percentage. Enter one number, click *, enter the second number, and then click %. For example, 50 * 25% will display 12.5. You can also perform operations with percentages. Enter one number, click the operator (+, -, *, or /), enter the second number, click %, and then click =. For example, 50 + 25% (of 50) = 62.5.
1/x
Calculates the reciprocal of the displayed number.
Mod
Displays the modulus, or remainder, of x/y. Use this button as a binary operator.
Or
Calculates bitwise OR. The behavior of logical operators is undefined unless the inputs are integers.
Lsh
Shifts left. To shift right, use "Inv" + "Lsh". After clicking this button, you must specify (in binary) how many positions to the left or to the right you want to shift the number in the display area, and then click "=". The behavior of logical operators is undefined unless the inputs are integers.
And
Calculates bitwise AND. The behavior of logical operators is undefined unless the inputs are integers.
Xor
Calculates bitwise exclusive OR. The behavior of logical operators is undefined unless the inputs are integers.
Not
Calculates bitwise inverse. The behavior of logical operators is undefined unless the inputs are integers.
Int
Displays the integer portion of a decimal value. To display the fractional portion of a decimal value, use "Inv" + "Int".
(
Starts a new level of parentheses. The current number of levels appears in the box above the ")" button.
)
Closes the current level of parentheses.
Exp
Allows entry of scientific-notation numbers. You can use only decimal digits (keys 0 through 9) in the exponent. You can use "Exp" only with the decimal number system.
ln
Calculates natural (base e) logarithm. To calculate e raised to the xth power, where x is the current number, use "Inv" + "ln".
log
Calculates the common (base 10) logarithm. To calculate 10 raised to the xth power, use "Inv" + "log".
Sta
Displays the Statistics Box dialog box and activates "Ave", "Sum", "s", and "Dat".
Ave
Calculates the mean of the values displayed in the Statistics Box dialog box. To calculate the mean of the squares, use "Inv" + "Ave". This button is available only if you click "Sta" first.
Sum
Calculates the sum of the values displayed in the Statistics Box dialog box. To calculate the sum of the squares, use "Inv" + "Sum". This button is available only if you click "Sta" first.
s
Calculates standard deviation with the population parameter as –1. To calculate standard deviation with the population parameter as n, use "Inv" + "s". This button is available only if you click "Sta" first.
Dat
Enters the displayed number in the Statistics Box dialog box. This button is available only if you click "Sta" first.
0-9
Puts this number in the calculator display.
+/-
Changes the sign of the displayed number.
.
Inserts a decimal point.
pi
Displays the value of pi (3.1415...). To display 2 * pi (6.28...), use "Inv" + "pi". You can use pi only with the decimal number system.
A-F
Enters the selected letter in the value. This button is available only if hexadecimal mode is turned on..
/
Divide.
*
Multiplies.
-
Subtracts.
+
Adds.
=
Performs any operation on the previous two numbers.
Inv
Sets the inverse function for "sin", "cos", "tan", "PI", "x^y", "x^2", "x^3", "ln", "log", "Ave", "Sum", and "s". The functions automatically turn off the inverse function after a calculation is completed.
Hyp
Sets the hyperbolic function for "sin", "cos", and "tan". The functions automatically turn off the hyperbolic function after a calculation is completed.
Degrees
Sets trigonometric input for degrees when in decimal mode.
Radians
Sets trigonometric input for radians when in decimal mode.
Grads
Sets trigonometric input for grads when in decimal mode.
x^y
Computes x raised to the yth power. Use this button as a binary operator. To calculate the yth root of x, use "Inv" + "x^y".
x^3
Cubes the displayed number. To calculate the cube root, use "Inv" + "x^3".
x^2
Squares the displayed number. To calculate the square root, use "Inv" + "x^2".
n!
Calculates the factorial of the displayed number.
1/x
Calculates the reciprocal of the displayed number.
Ret
Returns control to the calculator
Load
Loads the selected data point into the display of the calculator.