| Arithmetic Expressions |
| To know about the Arithmetic Expressions first of all we must should know about Arithmetic Operators which is given below: |
| Operation |
Fortran operator |
| + |
Add |
| – |
Subtract |
| * |
Multiply |
| / |
Divide |
| ** |
Exponentiation |
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| Integer expressions |
| We know about integers that it have no decimal point. These are expressed as the following rules like: |
| 1) A signed or unsigned integer variable name or an integer constant is an integer expression. |
| Example: |
| 5, +5, -2, +7, j, -j etc. |
| 2) An integer expression connected by an arithmetic operator to an unsigned integer variable name or an unsigned integer constant is an integer expression. |
| Example: |
| – IC * IA +IB |
| Here IC, IA, IB are unsigned integer variable and -, +, and * are arithmetic operators. |
| 3) An integer expression enclosed in parentheses is an integer expression. |
| Example: |
| ( -J * K +I) is an integer expression.; |
| Note: Two arithmetic operators should not occur in succession in an integer expression. |
| This is wrong to express: |
| Example: |
| IC -* IA |