インテル® Fortran コンパイラー 14.0 ユーザー・リファレンス・ガイド
Elemental Intrinsic Function (Specific): Converts a character string to a REAL(4) value. This function cannot be passed as an actual argument.
result = RNUM (i)
i
(Input) Must be of type character.
The result type is REAL(4). The result value is the real value represented by the character string i.
RNUM ("821.003") has the value 821.003 of type REAL(4).