
Re: cosine is Y = 1.44x^2 + .44x + 1 Re: sine is Y= 1.44x^2 + 2.44x
Posted:
Feb 20, 2017 10:37 PM


atan2(Y,X) = slope of angle between hypothenuse and adjacent in a right triangle where oposite has length Y and adjacent has length X plus complication that the lengths can have a negative sign.
https://en.wikipedia.org/wiki/Atan2
Am Dienstag, 21. Februar 2017 01:06:19 UTC+1 schrieb thugst...@gmail.com: > what is atan2(.,.) ?? > > > > asin(X) = atan2(X, sqrt(1X^2)) > > > > > > acos(X) = atan2(sqrt(1X^2), X) > > > > > > Have a Nice day!

