This page is used to calculate some usefull integer stuff.

Greatest common divisor (GRC), the largest divisor common to a list of numbers
Least common multiple (LCM), the smallest number that is a multiple of all numbers in a list
Prime factors, splits a number into prime factors
Word size, list range and step size for a word N bits wide
Gray codes, generates a list of gray codes
Bit size, list what word size a is required for a number, and max. multiplier that can be used without overflow
Real number to fraction (Mult/Div), finds a integer substitute for a real number
Real number to fraction with either numerator or denominator is locked to a power of two

The use of the values depends on the selected function.

Gretest common divisor (GRC)	Lists the GRC and the result of dividing each value by GRC
Least common multiple (LCM)	Lists the LCM and the result of dividing each value into LCM
Prime factors	List all primefactors for each number
Word size	List number of steps, precision, range, and some other stuff
Gray codes	List a gray code table (up to 9 digits), or the formula for calculating the gray codes (10+ digits)
Bit size	List minimum number of bits required to represent each number
Real to Mult/Div	Find a fraction to substitute for the real number, will also specify value limits in different word sizes
Real to Mult/Div with x/2^n	Find a fraction to substitute for the real number, but limits the denominator to powers of 2, will also specify value limits in different word sizes
Real to Mult/Div with 2^n/x	Find a fraction to substitute for the real number, but limits the numerator to powers of 2, will also specify value limits in different word sizes
Real to Mult/Div with x/2^wordsize	Find a fraction to substitute for the real number, but limits the denominator to wordsize. This function used the fact that most multiply instructions returnes a result with twice the wordsize, making a division with wordsize free (i.e. just use the lsb)

Define preferences.

Use standard signed bits	Include word sizes of 7,15,31 bits
Use standard unsigned bits	Include word sizes of 8,16,32 bits
More bits	Specify other word sizes (multiple specifications of the same wordsize are ignored)
Add spaces	Show all integer numbers with a space for every 3 digits, to improve readability

Remember that divide is the same as multiply with 1/x, i.e. to calculate a divide with 3, specify 1/3 as value
For multiplying with values below 1, use "Real to Mult/Div with x/2^wordsize"

MiscEl: Integer math