Well, I have to make a cannon turn over a center :) but i don'T know how can i do it and i need an algorithm for it,, or mybe a functuin

Question

anonymous · Answer

wnat to turn this using that x's sinus ^^

amistre64 · Answer

cant really tell what your after; applied force? or just motion of rotation about the origin?

amistre64 · Answer

Domain of x:  [-length of cannon, length of cannon]

anonymous · Answer

well i want to make this cannon rotate over a origin ^^

amistre64 · Answer

x = |cannon| cos(t)

y = |cannon| sin(t)

anonymous · Answer

just thouht that I can use trigonometry to make it rotate

anonymous · Answer

hmmm
then what we do to rotate?

amistre64 · Answer

you can use parametric equations to make it rotate

anonymous · Answer

hmm

anonymous · Answer

i think that
if we ++ sint that can rotate

anonymous · Answer

becuase hypotenuse  is const
and the if we raise the averse edge we can make hypotenuse move ^^

anonymous · Answer

and to raise the averse edge we should raise the sint ye?

amistre64 · Answer

var g = setInterval('rotateMe',speed)

function rotateMe()

{ x = |length| Math.cos(t)
  y = |length| Math.sin(t)

  plot = 'position:absolute; top:y; left:x'

  document.getElementById('img').position = plot

   t = t+angle of rotation
{

anonymous · Answer

hmmm give me a min to analyse this

anonymous · Answer

WOW really good!

anonymous · Answer

so make 2 dats and draw the cannon between these 2 dats?

amistre64 · Answer

yep

anonymous · Answer

one of them is origgn .. and the other one is the end of hypotenuse

anonymous · Answer

really nice! I just started to program this in C# and XNA :D

amistre64 · Answer

i do most of my stuff in javascript and html these days; aint got the money to get nothing better lol

anonymous · Answer

lol

amistre64 · Answer

its been awhile since i played in vb; prolly would have to take a refresher course

anonymous · Answer

VB u mean Visual baisc .NET?

anonymous · Answer

well why you need a refresher course?

amistre64 · Answer

gonna be taking a few programming courses for my math degree, nothing to fancy lol

anonymous · Answer

AHh k ^^ can you explain me what is nmemonic devices?

amistre64 · Answer

it means memory trick.  Something that is supposed to help you remember how to perform something.

anonymous · Answer

hmmm kk

amistre64 · Answer

pedmas is a mnemonic device for remembering the order of operations

anonymous · Answer

hmm ty

anonymous · Answer

so how can we use these?