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Homework and Emergencies Homework & Coursework Questions Using While and If statements Post 302486328 by jjb1989 on Friday 7th of January 2011 06:45:50 PM
Old 01-07-2011
Using While and If statements

1. The problem statement, all variables and given/known data:
Two problems I need solving please. I created a script where the user types in 7 numbers as standard input and each one is then stored in an array. Now I need to perform the following calculations on those numbers:

1) Use a while loop to determine the largest number in the range.

2)Use an If statement to calculate the median within the range.

Please provide each suggestion with the simplest command structure possible.

Many thanks for your help!


2. Relevant commands, code, scripts, algorithms:
If statement for question 2
While statement for question 1
-gt option
{arr[0]} array

3. The attempts at a solution (include all code and scripts):
1)

While [{arr[0]} -gt {arr[1-6]}
do
Done

2)

Sort {arr[0-6]}

#Absolutely stuck after sort

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):

Canterbury Christ Church University
Canterbury, Kent
United Kingdom

Professor name: Richard Henson

Course name: Operating Systems Assignment 1

Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
 

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CURRENT(3)								 1								CURRENT(3)

current - Return the current element in an array

SYNOPSIS
mixed current (array &$array) DESCRIPTION
Every array has an internal pointer to its "current" element, which is initialized to the first element inserted into the array. PARAMETERS
o $array - The array. RETURN VALUES
The current(3) function simply returns the value of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any way. If the internal pointer points beyond the end of the elements list or the array is empty, current(3) returns FALSE. Warning This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function. EXAMPLES
Example #1 Example use of current(3) and friends <?php $transport = array('foot', 'bike', 'car', 'plane'); $mode = current($transport); // $mode = 'foot'; $mode = next($transport); // $mode = 'bike'; $mode = current($transport); // $mode = 'bike'; $mode = prev($transport); // $mode = 'foot'; $mode = end($transport); // $mode = 'plane'; $mode = current($transport); // $mode = 'plane'; $arr = array(); var_dump(current($arr)); // bool(false) $arr = array(array()); var_dump(current($arr)); // array(0) { } ?> NOTES
Note You won't be able to distinguish the end of an array from a boolean FALSE element. To properly traverse an array which may contain FALSE elements, see the each(3) function. SEE ALSO
end(3), key(3), each(3), prev(3), reset(3), next(3). PHP Documentation Group CURRENT(3)
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