im not sure what the metatag equivelent of log is or if witango can do log,
although im sure it must.
does anyone know?
----- Original Message -----
From: "Web Dude" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, February 25, 2003 10:24 AM
Subject: Re: Witango-Talk: One for the Math Wizards
> Thanks! I will give it a try.
>
> What is log?
>
>
> >well, with the help of some people in a math chat room, we came up with
> >this:
> >
> >months = -log(1+(principle*rate/monthlypayment))/log(1+rate)
> >
> >hope that helps (:
> >
> >----- Original Message -----
> >From: "Web Dude" <[EMAIL PROTECTED]>
> >To: <[EMAIL PROTECTED]>
> >Sent: Tuesday, February 25, 2003 7:44 AM
> >Subject: Re: Witango-Talk: One for the Math Wizards
> >
> >
> >> I guess not...
> >>
> >> >I have a problem I am hoping someone with a better head for math can
> >> >help me figure out.
> >> >
> >> >I have built a mortgage calculator that seems to be relatively
> >> >accurate and now would like to do the same with credit card debt.
> >> >The mortgage calulator works like so...
> >> >
> >> ><@ASSIGN gPower <@CALC "(1+<@POSTARG 'rate'>/1200)^(<@POSTARG
> >'years'>*12)">>
> >> >
> >> >Monthly Payement = <@CALC "(<@POSTARG 'amount'>*<@POSTARG
> >> >'rate'>*<@VAR gpower>)/(1200*(<@VAR gpower>-1))" PRECISION="2"
> >> >FORMAT="num:3-*,\,,2,.,,,,">
> >> >
> >> >
> >> >Total Cost Of Loan = <@CALC "(<@POSTARG 'amount'>*<@POSTARG
> >> >'rate'>*<@VAR gpower>)/(1200*(<@VAR gpower>-1))*(<@POSTARG
> >> >'years'>*12)" PRECISION="2" FORMAT="num:3-*,\,,2,.,,,,">
> >> >
> >> >Now I found the formula for credit cards after much searching.
> >> >
> >> >principle = monthlypayment*(1 - (1+rate)^-months)/rate
> >> >
> >> >This works great when you know the principle, monthly payment, rate
> >> >and the number of months but I am trying a new twist to this.
> >> >
> >> >Suppose you want the client to give you the amount they owe on the
> >> >card, the rate and the amount of the payment they would like to
> >> >make. How would you come up with the number of months it would take
> >> >to pay off the debt, the total amount of the interest paid during
> >> >that time and the total cost of the debt?
> >> >
> >> >Any takers?
> >> >
> >> >p.s. my head hurts...
> >> >--
> >>
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> >>
> >> --
> >>
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>
> --
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