Convert a number from one radix (base) to another.
For example, the decimal number 90 can be converted to hexadecimal:
90 (base 10) = 5a (base 16)
or other bases:
90 (base 10) = 132 (base 8)
132 (base 8) = 1011010 (base 2)
or we can convert numbers that have multiple digits per digit (by separating the digits with commas):
35,12 (base 64) = 1qk (base 36)
or negative fractional numbers of mixed bases:
-87eg4.c71 (base 10,10,16,20,5.16,10,10) = -90908.821 (base 10)
- supports all integer bases 1 and above (up to a very high, but unknown base)
- supports fractional numbers
- allows the user to choose the symbol that represents each value
- supports numbers of mixed bases (each digit of a number can be in a different base)
- supports both standard form and numerals-only form
- an easy-to-use interface: just enter the starting base, target base, and starting number
- high-precision approximations when necessary with adjustable precision set to 75 digits by default
- verified by automated tests
Information on the various bases and how each one can be helpful:
https://en.wikipedia.org/wiki/List_of_numeral_systems#Standard_positional_numeral_systems
Numerals-only form is a system for representing numbers of any base using only numerals (0-9), as opposed to also using letters such as for hexadecimal (base 16), which normally uses a for 10, b for 11, etc. up to f for 15.
To write a number in numerals-only form, simply write commas between each of the digits, then replace digits that are not numerals with their numeral value. For example, the hexadecimal number 7a3f2 in standard form can be written as 7,10,3,15,2 in numerals-only form.
Unlike standard form, numerals-only form is not limited by the number of symbols that can be typed.
As another example, let's say you want to convert 5 hours, 48 minutes, and 30 seconds into minutes. With this program, you can select base 60 as the starting base, base 10 as the target base, and 5,48.30 as the starting number. The program then considers 5, 48, and 30 each as individual digits in the conversion calculation:
- lowercase letters have lower values than uppercase letters; here are the digits available by default, ordered by increasing value: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
- unary (base 1) allows any digits to be used in the starting number
- to enter a numerals-only number of a base that can be represented in standard form but is too short to include commas, enter an extra comma at the end or beginning of the number (the program detects numerals-only form if the starting base is too high for standard form, or if there is at least one comma)