Integer Base Conversion Tool

Digits used... 0 1 2 3 4 5 6 7 8 9 0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz`~!@#$%^&*()-_=+[]{}\|;:,.<>/?'"

Here is the java applet...

Notes: 'A' and 'a' have different values (10 and 36) as do all upper/lower case alpha character pairs. There is very little validation, so it's up to you to avoid overflows. Positive integers only... The dot ('.') is the 89th digit (value=88 if abs(base) > 89), not a radix point. Numerals which start with a dash ('-') start with the 74th digit. They are not negative. Numbers in negative bases are negative if their number of digits is even. Bases which start with a dash ('-') ARE negative. (And negative bases probably don't work yet).

Source: WebCon.java - GUI stuff TwoBaseRepObject.java - Interface between GUI and base converstion stuff. Horner.java - Convert between bases by an additive offset, using Horner's Method followed by divide/remainder. ExpBaseCon.java - Will implement this algorithm

Author: Steve Palmer (remlaps@ccil.org)

25 Nov 2007