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The '''+''' plus mathematical operator performs addition on two numerical values or [[concatenation|concatenate]] [[STRING]] values. | The '''+''' plus mathematical operator performs addition on two numerical values or [[concatenation|concatenate]] [[STRING]] values. | ||
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{{PageDescription}} | {{PageDescription}} | ||
* A [[+]] sign also can indicate a positive numerical value, but it is not required. | * A [[+]] sign also can indicate a positive numerical value, but it is not required. | ||
* Numbers used can be any literal or variable numerical value type. | * Numbers used can be any literal or variable numerical value type. | ||
* Adding one negative value will actually perform subtraction on the other value. | * Adding one negative value will actually perform subtraction on the other value. | ||
* Adding two negative values will make the return value more negative. | * Adding two negative values will make the return value more negative. | ||
* Addition and subtraction are the last operations performed in QBasic's normal order of operations. | * Addition and subtraction are the last operations performed in QBasic's normal order of operations. | ||
* The [[+|plus(+)]] operator can also be used to add ([[concatenation|concatenate]]) literal or variable [[STRING]] values. | * The [[+|plus(+)]] operator can also be used to add ([[concatenation|concatenate]]) literal or variable [[STRING]] values. | ||
* [[PRINT]] can also use + operations on string values ONLY! Numerical values will need to be converted to strings first or be included using [[semicolon]]s or [[comma]]s instead. | * [[PRINT]] can also use + operations on string values ONLY! Numerical values will need to be converted to strings first or be included using [[semicolon]]s or [[comma]]s instead. | ||
Revision as of 16:52, 22 January 2023
The + plus mathematical operator performs addition on two numerical values or concatenate STRING values.
Syntax: return_value = number1 + number2
Description
- A + sign also can indicate a positive numerical value, but it is not required.
- Numbers used can be any literal or variable numerical value type.
- Adding one negative value will actually perform subtraction on the other value.
- Adding two negative values will make the return value more negative.
- Addition and subtraction are the last operations performed in QBasic's normal order of operations.
- The plus(+) operator can also be used to add (concatenate) literal or variable STRING values.
- PRINT can also use + operations on string values ONLY! Numerical values will need to be converted to strings first or be included using semicolons or commas instead.
See also:
- minus (subtraction or negation operator)