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## 7.9 Dawson Function

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. The Dawson functions are declared in the header file
‘`gsl_sf_dawson.h`’.

__Function:__double**gsl_sf_dawson***(double*`x`)__Function:__int**gsl_sf_dawson_e***(double*`x`, gsl_sf_result *`result`)These routines compute the value of Dawson's integral for

`x`.