#### Treadline Equation

```Hello Everyone -

When use a series of data and create a chart - then from that create a
treadline to forecast future values - sometimes the formula Excel provides
(used to forecast the future values) is, im guessing, to big or too long and
Excel will place an E next to a number.

Here is an example: y = 762870x + 5E+06

How can I see the equation in its entirety so I can use it?

Thanks!
```
 0
Utf
1/31/2010 6:58:02 PM
excel.charting 18370 articles. 0 followers.

4 Replies
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```I assume that you mean "trendline", not "treadline"?
5E+06 means 5 * 10^6

You may want to try a function such as LINEST or LOGEST, depending on what
sort of trendline you are looking at.
--
David Biddulph

MC wrote:
> Hello Everyone -
>
> When use a series of data and create a chart - then from that create a
> treadline to forecast future values - sometimes the formula Excel
> provides (used to forecast the future values) is, im guessing, to big
> or too long and Excel will place an E next to a number.
>
> Here is an example: y = 762870x + 5E+06
>
>
> How can I see the equation in its entirety so I can use it?
>
>
> Thanks!

```
 0
David
1/31/2010 7:20:01 PM
```MC  -

Several possibilites:

(1) Select the equation, and then Format it. Method depends on Excel
version, which you didn't specify.

(2) For a linear trendline, use the INTERCEPT and SLOPE worksheet functions
(or array-entered LINEST, especially if you want diagnostics).

(3) Or, for linear forecasts, use the array-entered TREND worksheet
function.

-  Mike
http://www.MikeMiddleton.com

"MC" <MC@discussions.microsoft.com> wrote in message
news:F2156CB2-3564-46C3-A90E-9B3DA64B01D1@microsoft.com...
Hello Everyone -

When use a series of data and create a chart - then from that create a
treadline to forecast future values - sometimes the formula Excel provides
(used to forecast the future values) is, im guessing, to big or too long and
Excel will place an E next to a number.

Here is an example: y = 762870x + 5E+06

How can I see the equation in its entirety so I can use it?

Thanks!

```
 0
Mike
1/31/2010 11:17:52 PM
```Haha yes I did mean trendline thanks for that correction.  I do not know what
I was thinking when I wrote that.

I do not know how to use the LINEST, TREND, or LOGEST functions, but I was
using the trendline to forecast future expenses, assuming they increase in a
linear fashion (which is more than likely not the case, but it works well
enough).

Thanks for the help - It is much appreciated David and Mike!

"MC" wrote:

> Hello Everyone -
>
> When use a series of data and create a chart - then from that create a
> treadline to forecast future values - sometimes the formula Excel provides
> (used to forecast the future values) is, im guessing, to big or too long and
> Excel will place an E next to a number.
>
> Here is an example: y = 762870x + 5E+06
>
>
> How can I see the equation in its entirety so I can use it?
>
>
> Thanks!
```
 0
Utf
2/1/2010 10:29:01 PM
```If you don't know how to use any Excel function (with the exception of
DATEDIF), look it up in Excel help.
--
David Biddulph

MC wrote:
> Haha yes I did mean trendline thanks for that correction.  I do not
> know what I was thinking when I wrote that.
>
> I do not know how to use the LINEST, TREND, or LOGEST functions, but
> I was using the trendline to forecast future expenses, assuming they
> increase in a linear fashion (which is more than likely not the case,
> but it works well enough).
>
> Thanks for the help - It is much appreciated David and Mike!
>
> "MC" wrote:
>
>> Hello Everyone -
>>
>> When use a series of data and create a chart - then from that create
>> a treadline to forecast future values - sometimes the formula Excel
>> provides (used to forecast the future values) is, im guessing, to
>> big or too long and Excel will place an E next to a number.
>>
>> Here is an example: y = 762870x + 5E+06
>>
>>
>> How can I see the equation in its entirety so I can use it?
>>
>>
>> Thanks!

```
 0
David
2/2/2010 6:03:43 AM
 Reply:

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