Changes in this version:
- Add 'version' command to get the current fend version
- Support
-sin piand3 sin piwithout parentheses - Support function inverses: e.g.
sin^-1becomesasin - Add
to sfto convert numbers to a fixed number of significant figures - Make many calculations involving
sinandcosexact - Add
tau(τ), equal to2π - Add Yi- and Zi- binary prefixes
- Use decimal approximations instead of fractions by default
x to exactwill now convertxto an exact representation whenever possible, including using multiples of π- Add
cisas a shorthand forcos θ + i * (sin θ)