[Javascript] Math

[staeger]

Cutter Bl wrote:
> 
> I'm terrible at Math as it is, but I still don't understand javascripts math
> operations real well anyway. Any help here is greatly appreciated.
> 
> I've got a non-profit who wants to sell Raffle Tickets from their site. I
> have a form text field where the user can enter the Quantity
> (myForm.Quantity). Here's the kicker. The client says $2 a ticket, 3 for $5.
> 
> Ok, so 10 tickets is $17. 10 divided by three is 3.33333etc. 3 times 5 is
> 15, plus the $2 for the other ticket.
> 
> But how do you put this in a script calculation?
> 
> Cutter
> http://www.falcon-knives.com

i'm just trying it ...

var tickets = [number off tickets];
price = 5*Math.floor(tickets/3) + 2*(tickets%3);

greets./

-- 
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benjamin staeger            swiss federal institute of technology
                                              architecture & caad
                                      mailto:staeger at arch.ethz.ch
                                http://caad.arch.ethz.ch/~staeger
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                      Always  listen  to  experts. 
They'll  tell  you  what  can't  be  done,  and  why.  Then do it.