PHP Math

dannyb77

Does anyone have any idea how to do the following?

1. Calculate the value of several numbers in a sequence. What I am looking for is for a person to be able to input a sequence of numbers in one text box, and then to calculate the sum, the average number and the highest/lowest numbers.

The html I have is:
<form method="post"><input type="text" name="sequence" /><input type="submit" value="Answers" /></form>

So in the text box I could put: 1234567890
And it would tell me:

Highest: 9
Lowest: 0
Average: 4.5
Sum: 45

2. Is there a way of displaying the result without refreshing the page? Ie, as you enter the numbers, the results would be displayed below.

Any ideas?

D 😃

laserlight

Calculate the value of several numbers in a sequence. What I am looking for is for a person to be able to input a sequence of numbers in one text box, and then to calculate the sum, the average number and the highest/lowest numbers.

This is easy enough, assuming that the format of the sequence of numbers is well defined. For example, 1234567890 could be considered one number, but you consider it ten.

Is there a way of displaying the result without refreshing the page? Ie, as you enter the numbers, the results would be displayed below.

Yes, use clientside scripting such as Javascript, not PHP.

Is this homework, pray tell?

dannyb77

Not homework. Bored at work. No...it's just an idea to help my little brother out.

How do you tell PHP to consider the sequence of numbers as 10 seperate numbers?

Will look in to JS.

laserlight

How do you tell PHP to consider the sequence of numbers as 10 seperate numbers?

Treat it as a string, then read character by character. You can use [man]ctype_digit/man to confirm that it is a valid digit.

dannyb77

Thank you!

dannyb77

Okay so I managed to get it to seperate into 10 seperate numbers, but not entirely sure how I now can use those numbers in my calculations.

Could you point me in the right direction?

Thank you! 😃

laserlight

Okay so I managed to get it to seperate into 10 seperate numbers, but not entirely sure how I now can use those numbers in my calculations.

What have you done so far?