In this video, I calculate the limit as x goes to 3 of x^2, using the epsilon-delta definition of a limit.

speeding up or speeding down, rate of change of position Please subscribe for more calculus tutorials and share my videos to help my channel grow! 😃 Comment ...

derivative of ln(x) vs derivative of ln(abs(x))

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My simple setup: 😃 https://youtu.be/IKk7k…

Thanks to Raoul from Indonesia! This problem stumped me, but I persisted and eventually figured it out. The key was thinking inside the box!

My blog post for this video
https://wp.me/p6aMk-83j

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Read the Nature paper for yourself:
"Scutoids are a geometrical solution to three-dimensional packing of epithelia"
https://www.nature.com/articles/s41467-018-05376-1

Thanks to Laura and Clara for helping me with the video!

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In this video, I calculate the half-derivative of ln(x) using the definition of the fractional derivative given in a previous video. Warning: The answer is NOT constant times 1/sqrt(x)

Answering where f is increasing, decreasing, local min/MAX, concave up, concave down, and point of inflection from the graph of f'(x) Please subscribe for mo...

The symmetric derivative of abs(x) at x=0,

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My simple setup: 😃 https://youtu.be/IKk7k…

related rates, heating up a circular metal plate,
Related rates example, this problem is taken from Single Variable Calculus, by James Stewart, 8th Ed, early transcendental,
For file, please see https://blackpenredpen.com/calc1
For playlist, see https…

Practice#2, https://youtu.be/A45rzfoqveE ,
For file, see https://blackpenredpen.com/calc1 ,
Solution playlist (with unlisted videos) https://www.youtube.com/playlist?list=PLj7p5OoL6vGyMA4ry3PU4d_vIbD2qObSY&disable_polymer=true



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