--- a/src/misc.h	Wed Oct 16 23:07:59 2013 +0300
+++ b/src/misc.h	Wed Oct 16 23:20:35 2013 +0300
@@ -33,12 +33,7 @@
 extern const int g_primes[NUM_PRIMES];
 
 // Returns whether a given string represents a floating point number.
-bool isNumber (const str& tok);
-
-// Converts a float value to a string value.
-str ftoa (double num);
-
-double atof (str val);
+bool numeric (const str& tok);
 
 // Simplifies the given fraction.
 void simplify (int& numer, int& denom);