2 ms·Man the the second video gets steep, quickly.by Achshar 11y agoMan the the second video gets steep, quickly.goshx 11y agoThat was my impression too. There should be a video to demystify that second video :)slagfart 11y agoYes! Where can I turn to for this? Is there a course that teaches me just the maths that I need to understand this?