On 01/02/2010, at 1:59 PM, Glenn L. Austin wrote: > On Jan 31, 2010, at 6:46 PM, Graham Cox wrote: > >> >> On 01/02/2010, at 1:22 PM, Chunk 1978 wrote: >> >>> i'm searching for a general algorithm to produce a cartesian sine wave >>> that outputs numbers, which i suppose would be based on maximum >>> distance (range) from Y while using a timer. >> >> v = range * sin(t) >> >> --Graham > > Just remember that the argument to sin() must be in radians. To convert > degrees to radians, radians = degrees * kPI / 180.0;
Real programmers (TM) don't use degrees ;-) Except for UI input/display. For that, these macros are useful: #define DEGREES_TO_RADIANS( d ) ((d) * 0.0174532925199432958) #define RADIANS_TO_DEGREES( r ) ((r) * 57.29577951308232) --Graham _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
