Math problem

Anon

If:
2 things make 4 thingis and
3 things make 8 thingis and

2 - 4
3 - 8
4 - 16
5 - 32
etc..

As you see the second number gets doubled. What I want to make is a script where when I give it a number (first #) it'll calculate and return the corresponding number (second #). So when I give it 3, it'll return 8 and 4 will return 14 and 6 will return 64 and etc... like on the table..

Please help me to come up with such script!

Anon

So what you have is 2 to the power of the first number.

So all you need to do is this:

for ($i = 1; $i <= 20; $i++) {
print "$i - " . pow(2, $i) . "\n";
}

That will build your table from 1 to 20.

mega_hurtz

right, or you can do this:

function power_up($pow) {

return pow($pow,2); }

mega_hurtz

uh, my bad.....

function power_up($pow) {

return pow(2,$pow); }

Anon

...or

function power_up($pow) {

return 1<<$pow; }

ayzee01

hey Hayley.

Forgive me, but you don't often see female developers, especially ones that know the amount that you do.

Any chance of a profile... a picture maybe???? :o)

Leon.