Calc

Histrix

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7
8
9
/
4
5
6
*
%
1
2
3
-
1/x
0
+/-
.
+
=
A
B
C
D
D
F

Integer operations

Advanced operations

Metrics

Statistics

Calc

Histrix

Help

Basic buttons

  • 0-9
    Puts this number in the calculator display.
  • +/-<
    Changes the sign of the displayed number.
  • .
    Inserts a decimal point.
  • +, -, *, /
    Add, substract, multiply or divide.
  • =
    Performs any operation on the previous two numbers.
  • Back space
    Deletes the last digit of the displayed number.
  • CE
    Clears the number displayed at that time.
  • CA
    Clears the entire calculation.
  • 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.

Memory

  • MC
    Clears any number stored in memory.
  • MR
    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.

Integer's operations

  • 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".

Advanced calculations

  • 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.
  • (
    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".
  • 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.
  • 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.
  • x^2
    Squares the displayed number. To calculate the square root, use "Inv" + "x^2".
  • x^3
    Cubes the displayed number. To calculate the cube root, use "Inv" + "x^3".
  • 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".
  • n!
    Calculates the factorial of the displayed number.
  • 1/x
    Calculates the reciprocal of the displayed number.

Metrics

  • 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.
  • 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.

Statistics

  • Ave
    Calculates the mean of the values displayed in the Statistics Box dialog box. To calculate the mean of the squares, use "Inv" + "Ave".
  • Sum
    Calculates the sum of the values displayed in the Statistics Box dialog box. To calculate the sum of the squares, use "Inv" + "Sum".
  • s
    Calculates standard deviation with the population parameter as –1. To calculate standard deviation with the population parameter as n, use "Inv" + "s".
  • Dat
    Enters the displayed number in the Statistics Box dialog box.
  • Ret
    Returns control to the calculator.
  • Load
    Loads the selected data point into the display of the calculator.
  • CD
    Clears the selected data point out of the list.
  • CAD
    Clears all data points out of the list.