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Addition
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Mathematical Operation to return the sum of two or more summands
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Subtraction
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Mathematical Operation to return the difference of minuend and subtrahend
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Multiplication
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Mathematical Operation to return the product of multiplier and multiplicant
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Division
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Mathematical Operation to return the fraction of divident and divisor
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Modulus
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Mathematical Operation to return the remainder of a division of two integers
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Exponentiation - PHP5.6 or above required
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Mathematical Operation to return the repeated multiplication (or division) of a base by its exponent.
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Decimal Mark
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Decimal Mark used to separate the integer part from the fractional part
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Round Bracket
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Used to override normal precedence or to mark the first level of nesting
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Square Bracket
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Used to override normal precedence or to mark the second level of nesting
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Punctuation mark
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Used to separate arguments forwarded to a function
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