Solved

VBA Excel 2010 error?

Posted on 2016-08-16
3
39 Views
Last Modified: 2016-09-06
I'm reducing (trig) angles [-N .. N] for all allowable N down to [-2*Pi .. 2*Pi] using a real number (double) Mod function equivalent:
=====================
Sub RadsModPi2()
Call Init   ' defines all constants; all vars are Double
' Pi2 = 6.28318530717959   a constant
With ThisWorkbook.Worksheets("Sheet1")
  For I = 6 To 294                                                 ' I is integer
    Rads = .Cells(I, 1)
    RadM = Rads - (Pi2 * (Rads \ Pi2))
    .Cells(I, 2) = RadM
    RadM = Rads - (Pi2 * Fix(Rads / Pi2))
    .Cells(I, 3) = RadM
  Next
End With
End Sub
===============
According to MS, both  " r1 - (r2 * (r1 \ r2)) "   and  " r1 - (r2 * Fix(r1 / r2)) "  are real number equivalents to the Integer mod functions, but the former produces consistently inconsistent results. Has anyone seen this before or is the a problem with the code I'm overlooking?

TIA - Ed

 
R1ModR2.png
0
Comment
Question by:Ed Covney
  • 2
3 Comments
 
LVL 45

Accepted Solution

by:
aikimark earned 500 total points
ID: 41759537
Fix() behaves differently with negative values than Int(), which approximates the \ operator
0
 
LVL 2

Author Comment

by:Ed Covney
ID: 41760005
Your connecting the dots between Int() and ( \ ) did the trick; Int is 16-bit, Fix is 64-bit.
Thanks for pointing me in the right direction. - Ed
0
 
LVL 45

Expert Comment

by:aikimark
ID: 41778840
Ed

Please accept one or more comments as the solution.
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Modern/Metro styled message box and input box that directly can replace MsgBox() and InputBox()in Microsoft Access 2013 and later. Also included is a preconfigured error box to be used in error handling.
When you see single cell contains number and text, and you have to get any date out of it seems like cracking our heads.
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question