trigonometry_开发者

Direction Cosine Matrix implementation

I\'m trying to implement the Direction Cosine Matrix on Android. I\'ve read some theory about DCM and I finally coded a draft[详细]

2023-04-09 08:50 分类：问答

Finding x/y coordinates that fall within filled canvas arcs

Here is the fiddle T开发者_Python百科he arcs I\'ve drawn around the outside of the circle - I\'d like to know how to find all of the x/y coordinates that they cover so that I don\'t have to re-draw t[详细]

2023-04-06 14:53 分类：问答

how to call cosine and sine function in .html.erb file?

Myform calls trig functions like sin and cos, but I\'m unable 开发者_如何学编程to compile it ; it keeps returning me this error message[详细]

2023-04-06 03:00 分类：问答

Trig problem, choppy movement of a triangle around a circle

The code below is supposed to rotate a triangle around an \"invisible\" circle. It is working just as I intended, however, the triangle seems to stutter around this \"circle\" sometimes. The CPU and m[详细]

2023-04-05 17:04 分类：问答

Creating a Triangle wave from a Sine wave in C++

I am having trouble finding out how to form a triangle (not sawtooth) wave from a sine wave. I understand how to create it for a S开发者_Go百科quare wave:[详细]

2023-04-05 00:52 分类：问答

Lines rotation problem

I have 2 lines that i draw like this: float Alpha = RotDegrees; PointF PitCenter = new Point(picBoxZoomMap.Width / 2, picBoxZoomMap.Height / 2);[详细]

2023-04-04 01:10 分类：问答

Is there any advantage to restraining the angle passed to trigonometric functions?

I was wondering whether there was any advantage to clamping the angle passed to trigonometric functions between 0 and Math.PI * 2? I had a function which made heavy use of trigonometric functions, and[详细]

2023-04-03 19:21 分类：问答

How to calculate "OnTopicness" of documents using Lucene.NET

Imagine I have a huge database of threads and posts (about 10.000.000 records) from different forum sites including several subforums that serve as my lucene documents.[详细]

2023-04-02 12:54 分类：问答

Get angle and quadrant from three points

Given: point clickWheelCenter point startPoint (first touch) point point (actual touch) I want to determine the angle between these three point, and I want to know, in which quadrant the last tou[详细]

2023-04-01 16:52 分类：问答