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# Lotus 123 formula question

## Lotus 123 formula question

(OP)
I’ve got a Lotus worksheet that has this formulas in one of the cells:

1/@FV(1,C14,C15)

I’m trying to understand how Lotus interprets this…. I would have expected to see the @ symbol as the first character in the cell to denote that a formula was being used. If anyone can point me to a reference or help with this, I would appreciate it.

Jan

### RE: Lotus 123 formula question

The yhe formula is 1 divided by @FV(1,C14,C15). The following is from version 5.0's help section on formulas.

@FV(payments;interest;term) calculates the future value of an investment, based on a series of equal payments, earning a periodic interest rate, over the number of payment periods in term.

I hope this helps some.

### RE: Lotus 123 formula question

Oops, The first line should be "The formula is 1"

### RE: Lotus 123 formula question

I aggree with you that the "1" should not be in front of the @ sign, but can't explain why it is.  I have an old book that explains the @FV formula this way:
@FV(payment, interest, term)

The @FV function calculates the future value of a series of equal payments, where "interest" is the interest compounded each period and "term" is the total number of payments.. For example, if you plan to deposit $10,000 a year for 10 years into an account that earns 12% simple interest per year, you can use the function: @FV(10000,.12,10) to determine what your account will be worth at the end of that period. The account will be worth$175,487 at the end of 10 years.
The @FV function uses the following formula to calculate future value:payment*(((1+interest)^term)-1)/interest.
This calculation assumes that you make each payment on the last day of each period.
The @FV Function in 1-2-3 release 2 evaluates to ERR whenever the term argument is less than 1. The problem is corrected in later releases.

Hope it helps some....

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