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alecjacobson / computer-graphics-kinematics

Computer Graphics Assignment about Kinematics
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Equation 33 Readme #20

Closed Marina-t closed 6 years ago

Marina-t commented 6 years ago

Why are we using an addition here instead of a negation? equation33 thanks

nafis95 commented 6 years ago

I had a similar question. For me negation worked and positive didnt work, so i just have that in my code. Not sure why it mentions positive in the readme

alecjacobson commented 6 years ago

The readme is correct. ∆a is the step direction. What direction should this be if using gradient descent? That is, ∆a = ?

ptanugra commented 6 years ago

I think this is just a matter of notation. If the change in a is negative as mentioned in the previous section, your equation would be then negative.