-int isgreater(float x, float y);
-int isgreaterequal(float x, float y);
-int isless(float x, float y);
-int islessequal(float x, float y);
-int islessgreater(float x, float y);
-int isunordered(float x, float y);
+int isgreater(float e, float f);
+int isgreaterequal(float e, float f);
+int isless(float e, float f);
+int islessequal(float e, float f);
+int islessgreater(float e, float f);
+int isunordered(float e, float f);