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// // A rust binding for the GSL library by Guillaume Gomez (guillaume1.gomez@gmail.com) // /*! The Dawson integral is defined by \exp(-x^2) \int_0^x dt \exp(t^2). A table of Dawson’s integral can be found in Abramowitz & Stegun, Table 7.5. !*/ use std::mem::zeroed; use enums; /// This routine computes the value of Dawson’s integral for x. pub fn dawson(x: f64) -> f64 { unsafe { ::ffi::gsl_sf_dawson(x) } } /// This routine computes the value of Dawson’s integral for x. pub fn dawson_e(x: f64) -> (enums::Value, ::types::Result) { let mut result = unsafe { zeroed::<::ffi::gsl_sf_result>() }; let ret = unsafe { ::ffi::gsl_sf_dawson_e(x, &mut result) }; (ret, ::types::Result{val: result.val, err: result.err}) }