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use core::*;
use core::vari::*;
use core::var::*;
pub mod grad;
use std::cell::RefCell;
use std::rc::Rc;

#[macro_use]
pub mod ln;
pub use self::ln::ln;
#[macro_use]
pub mod sin;
pub use self::sin::sin;
#[macro_use]
pub mod cos;
pub use self::cos::cos;
#[macro_use]
pub mod add;
pub use self::add::Add;
#[macro_use]
pub mod sub;
pub use self::sub::Sub;
#[macro_use]
pub mod mul;
pub use self::mul::Mul;
#[macro_use]
pub mod div;
pub use self::div::Div;
#[macro_use]
pub mod pow;
pub use self::pow::pow;