dist = (A,B) => Math.sqrt((xB - xA)*(xB - xA) + (yB - yA)*(yB - yA))
Awesome... Thanks
Line thru 2 points should be a = (yB - yA) / (xB - xA) , not (yB - yA) / (yB - yA)
thanks @Siorki!
https://jsperf.com/hypotvstrigonometric/1
best perf using hypot than trigonometric to normalize vector
Nice gist!
Would be nice if someone adds normal/dot/cross production calculations.
You must also must add easing functions to make this list complete:
https://gist.github.com/gre/1650294
ooh thanks @hinell
better to also have a "rotation along arbitrary axis", length being radians to rotate, no singularity at zero.
even more, somehow in favor of quaternion "slerp" because i think quaternion describes "state" or "instant transformation" but not the dynamic, continuous "rotation".
for reference and free copy: http://farter.cn/math/rotvec3/
@farteryhr Quaternions are good, thanks for sharing.
awesome
Sweet! Thanks a ton!