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Top Forums UNIX for Beginners Questions & Answers Multiply elements of 2 arrays together into another array Post 303034211 by Scrutinizer on Monday 22nd of April 2019 02:10:31 AM
Old 04-22-2019
Hi, try:
Code:
Z[$i]=$((${X[$i]} * ${Y[$i]}))

Note also that the double quotes should not be there..

This can also be written as:
Code:
Z[i]=$((X[i] * Y[i]))

Which you may find easier to read...

Last edited by Scrutinizer; 04-22-2019 at 05:54 AM..
This User Gave Thanks to Scrutinizer For This Post:
 

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ARRAY_UNSHIFT(3)							 1							  ARRAY_UNSHIFT(3)

array_unshift - Prepend one or more elements to the beginning of an array

SYNOPSIS
int array_unshift (array &$array, mixed $value1, [mixed $...]) DESCRIPTION
array_unshift(3) prepends passed elements to the front of the $array. Note that the list of elements is prepended as a whole, so that the prepended elements stay in the same order. All numerical array keys will be modified to start counting from zero while literal keys won't be touched. PARAMETERS
o $array - The input array. o $value1 - First value to prepend. RETURN VALUES
Returns the new number of elements in the $array. EXAMPLES
Example #1 array_unshift(3) example <?php $queue = array("orange", "banana"); array_unshift($queue, "apple", "raspberry"); print_r($queue); ?> The above example will output: Array ( [0] => apple [1] => raspberry [2] => orange [3] => banana ) SEE ALSO
array_shift(3), array_push(3), array_pop(3). PHP Documentation Group ARRAY_UNSHIFT(3)
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