These were moved to their own trait and removed from the definition of a Real number. This allows the definition of a trigonometric function to call a different libc trig function depending on type.
Sigils
A mathematics library.
The code in this library uses macros pretty heavily. As such, please check the trait's documentation for a function since the macro definition will not really be documented. This was not done to make documentation difficult, but to make coding the library easier and to make it easier to maintain.
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Rust
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