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pub use crate::complex::Cmplx;

/// pi
pub const PI: f64 = 3.14159265358979323846;
/// pi/2 
pub const PI_2: f64 = 1.57079632679489661923;
/// Square root of 2
pub const SQRT2: f64 = 1.41421356237309504880;
/// e
pub const E: f64 = 2.71828182845904523536;
/// i
pub const I: Cmplx = Cmplx::new( 0.0, 1.0 );