Welcome to the fend Manual!
fend is an arbitrary-precision unit-aware calculator. If you haven’t already, head to https://printfn.github.io/fend to use the online version, or click here to learn how to install fend on your computer.
You can check your version of fend at any time by typing version. If you are using the command-line interface, you can also run fend --version.
You can write in any other base (between 2 and 36 inclusive) by writing <base>#<number>. Here is an example of senary (base 6):
Bitwise operators are also supported. & is used for bitwise AND, | for bitwise OR, and xor for bitwise XOR, since ^ is already used for exponentiation. Left and right bitshifts can be done with << and >>.
The operator precedence for these is the same as in C, with bitshifts having the highest precedence, followed by &, then xor, and finally | which has the lowest precedence.
fend supports many units, such as kg, lb, N, lightyear, etc. You can interchangeably use to, as and in to convert between units.
