Arithmetic Operators The mathematical symbols that can be used in Fortran and the corresponding mathematical symbol is given in the following table. Arithmetic Operations FORTRAN variables and constants can be processed using operations and functions appropriate to their types. The same symbols are used for integer (INTEGER), real (REAL, DOUBLE PRECISION REAL) and complex (COMPLEX, DOUBLE PRECISION COMPLEX) arithmetic. DOUBLE COMPLEX @. Since I am not experienced in the programming language Fortran in my example I came across a problem where the compiler reports the following errors to me: DOUBLE PRECISION. The basic arithmetic operations of addition, subtraction, multiplication, division, & exponentiation (raising to the power) are all possible in FORTRAN 77. Addition + 2. Use the exponentiation, division, and multiplication operators between exactly two operands. LOGICAL. Division / 5. Simple Arithmetic Operators Operators in Fortran expressions are about what you would expect from other experiences, except perhaps exponentiation: 4.6 Integer division. 4.8 FORTRAN 90 - PRINT statement. Exponentiation ** Arithmetic. Addition as well as subtraction in FORTRAN 77 ownership the same familiar symbols + moreover to - . 4.7 Mixed Mode aritmetic. Fortran has five LOGICAL operators that can only be used with expressions whose results are logical values (i.e., .TRUE. The operations and their operators are listed in the Table 11.1. Replacing slow arithmetic operators with faster ones should be reserved for critical code areas. @ indicates a nonstandard feature. But here the rules are slightly different from standard BODMAS. REAL*16 (SPARC only) @. precedence of arithmetic operators in Fortran 77 are (from highest to lowest): ** {exponentiation} *,/ {multiplication, division} +,- {addition, subtraction} All these operators are calculated left-to-right, except the exponentiation operator **, which has right-to-left precedence. REAL. Table 3-1 Arithmetic Operators Arithmetic Expressions. The following list shows the Intel Fortran arithmetic operators, from fastest to slowest: Addition (+), Subtraction (-), and Floating-point multiplication (*) Integer multiplication (*) Division (/) Exponentiation (**) Avoid Using EQUIVALENCE Statements 4.4 Declaration statements. The arithmetic operations on complex numbers are all represented by the same operators as for the REAL or INTEGER numbers. 4.9 Design and setup of a complete program Subtraction - 3. An arithmetic expression evaluates to a single arithmetic value, and its operands have the following types. INTEGER. 2. The arithmetic operators are +,- plus and minus *,/ multiply and divide ** exponentiation (raise to the power) () brackets The order of precedence in FORTRAN is identical to that of mathematics. or .FALSE.All LOGICAL operators have priorities lower than arithmetic and relational operators. LOGICAL Operators and Expressions . BYTE @. Operands of an arithmetic operation may be a numeric constant, numeric variable or an arithmetic expression in parentheses. 4.3 Concept of a computer variable. The operators for an arithmetic expression are any of the following: . Fortran provides for all the basic Arithmetic operations. The five arithmetic operators in FORTRAN are: 1. 4.5 Implicit declarations in FORTRAN. COMPLEX*32 (SPARC only) @. You can use the addition and subtraction operators with one or two operands; in the latter case, specify the operator before the operand; for example, –TOTAL. COMPLEX. Fortran 77 : 3. 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