k?php // if statement with condition if ($hourOfDay > 6 && $hourOfDay < 12 ) { $greeting = "Good Morning"; } else if ($hourOfDay == 12) { // optional else if $greeting = "Good Noon Time"; } else { // optional else branch $greeting = "Good Afternoon or Evening"; } //extra line to show output. echo $greeting; ?>

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Max Function

Statistical function is of many categories. One of them is a MAX function. The MAX function returns the largest value from the list of arguments passed to it. MAX function always ignores the empty cells when performing the calculation.

Power Function

A power function is a type of single-term function. Its definition states that it is a variable containing a base value raised to a constant value acting as an exponent. This variable may also have a coefficient. For instance, the area of a circle can be given as: