Is the arccosine formula available in Access? What about Pi?

[Keezel]

I am trying to create a query to calculate distance using latitude and
longitude. I can't find the arccosine or Pi expressions in Access. Pi is no
big deal, but I really need arccosine. I want to just use a simple query to
calculate it. Any help would be greatly appreciated.

 

[Van T. Dinh]

See Access VB Help topic "Derived Math Functions".

You can derive PI but it probably not worth the effect due to truncation &
rounding errors. A constant with about 10 decimal places is about as
accurate as you can get.

 

[Jeff Boyce]

Keezel

You can "borrow" the arccosine function and the constant "Pi" from Excel,
which has both.

Open a code module in Access, select Tools | References, and set a reference
to the Excel object library.

Now, when you need to use Pi or an arccosine, Access Intellisense should be
able to see/use them.

I just used the following in the Immediate Window to display Pi:

?WorksheetFunction.Pi

Regards

Jeff Boyce
<Access MVP>