The first image is nice since it actually lists the math used. It’s a lot of trig functions though, which aren’t great for shaders. I love the easings site too, but it’s just showing built in animations with out the associated math function. Plus some of them are trig based again. Quadratics or other polynomial parametrics are generally better options than anything with trig (and while trig functions are often approximated with polynomials on GPUs anyway, they can be fairly complex equations on their own).
Luckily the easings site are in an open source JQuery plugin.