Arithmetic Operators

For arithmetic operators, an operand is considered a number if its first character is a digit or a minus sign (–). Otherwise, it is considered a string and converted to 0 for an empty string or 1 for a non-empty string. The use of a non-number in an arithmetic context may result in a run-time warning, as discussed in PslDebug-Run-Time-Error-Checking-Variable. The following table lists the PSL arithmetic operators.

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PSL-Operators