Yes, Log = In(x) (or loge(x)), the natural logarithm of the expression usage log(expr) you can view this under help under <@CALC> metatag
Don't ask me how to use it though :-b Ben Johansen - http://www.pcforge.com Authorized Witango Reseller http://www.pcforge.com/WitangoGoodies.htm Authorized MDaemon Mail Server Reseller http://www.pcforge.com/AltN.htm -----Original Message----- From: Atrix Wolfe [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 25, 2003 11:36 AM To: [EMAIL PROTECTED] Subject: Re: Witango-Talk: One for the Math Wizards 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... > >> >-- > >> >_______________________________________________________________________ _ > >> >TO UNSUBSCRIBE: send a plain text/US ASCII email to [EMAIL PROTECTED] > >> > with unsubscribe witango-talk in the message body > >> > >> > >> -- > >> ________________________________________________________________________ > >> TO UNSUBSCRIBE: send a plain text/US ASCII email to [EMAIL PROTECTED] > >> with unsubscribe witango-talk in the message body > > > >_______________________________________________________________________ _ > >TO UNSUBSCRIBE: send a plain text/US ASCII email to [EMAIL PROTECTED] > > with unsubscribe witango-talk in the message body > > > -- > ________________________________________________________________________ > TO UNSUBSCRIBE: send a plain text/US ASCII email to [EMAIL PROTECTED] > with unsubscribe witango-talk in the message body ________________________________________________________________________ TO UNSUBSCRIBE: send a plain text/US ASCII email to [EMAIL PROTECTED] with unsubscribe witango-talk in the message body ________________________________________________________________________ TO UNSUBSCRIBE: send a plain text/US ASCII email to [EMAIL PROTECTED] with unsubscribe witango-talk in the message body
