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- #ifndef _NROOT_H
- #define _NROOT_H
- extern double nroot(long int,double);
- #endif
-
- /********************************************************************
-
- Extracts n-th root from x.
-
- result = nroot( n , x );
-
- double result;
- long int n;
- double x;
-
- If n is less than 1 result is 0 and global integer errno contains value EDOM.
- If n is even and x is negative, result is 0 and global integer errno
- contains value EDOM.
-
- *********************************************************************/
-