| View previous topic :: View next topic |
| Author |
Message |
nick
Contributor
Joined: 15 Aug 2000
Posts: 50
Location: hamburg,nj
|
 Posted: Fri Jan 10, 2003 4:18 am Post subject: Math problem |
 |
|
Hello:
Does anyone know of a dll or a formula for finding the arc cosine of a number. VDS math fuctions do everything else I need -but arc cosine.
There is the icemath dll which would work, but I am having a hard time getting it registered  .
I am trying to find a quick solution to get my project out-the-door. Any ideas would be appreciated  .
Thanks in advance.
Nick |
|
| Back to top |
|
 |
Mac
Professional Member
Joined: 08 Jul 2000
Posts: 1585
Location: Oklahoma USA
|
| Posted: Fri Jan 10, 2003 9:22 am Post subject: |
|
|
I'm sure ya know everything's approximate
with pi - including pi itself... 
arc cosine formula: (pi/2) - number
You can @format() this to whatever length is needed:
__________________________________________________________________________________________________________________________
| Code: |
%%pi = 3.14159
%x = 1.1
rem -- get cosine of %x --
%%cosine = @fcos(%x)
rem -- use arc cosine formula to convert cosine back to %x (approx) --
%%arc_cosine = @fsub(@fdiv(%%pi, 2), %%cosine)
INFO "x = "%x@cr()@cr()"cosine of %x = "%%cosine@cr()@cr()"arc cosine of %%cosine = "%%arc_cosine@tab()
|
Cheers, Mac 
_________________
VDSug.dll does file IO, check/disable menu items,
non-VDS dlls, draw functions and more...
Free download (30k dll size) at:
http://www.vdsworld.com/download.php?id=361
 |
|
| Back to top |
|
|
nick
Contributor
Joined: 15 Aug 2000
Posts: 50
Location: hamburg,nj
|
| Posted: Fri Jan 10, 2003 12:36 pm Post subject: |
|
|
Thanks Mac. I'll try the formula.
Nick |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
@vdsworld