Keub

Keub

1. 16:08 · 30 May 2026 · Sat

   

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   Chain rule

2. 00:36 · 30 May 2026 · Sat

   

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   D(sinx)

3. 00:24 · 30 May 2026 · Sat

   

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   x³

4. 00:19 · 30 May 2026 · Sat

   

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   D(x²) = 2xdx + dx² (ignored)
   (xdx is the area of the small rectangle, 2 coz two rectangles)
   df = 2xdx
   df/dx = 2x

5. 00:09 · 30 May 2026 · Sat

   

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   Oh fuck. He just derived D(t³) = 3t²

6. 00:01 · 30 May 2026 · Sat

   Keub

   at time t [s(t)] and a small time dt [s(t+dt)]

   Instead of two points

7. 00:00 · 30 May 2026 · Sat

   Keub

   In pure math, the derivation is not this ratio d(s)/d(t) (t) for a specific choice of dt (=0.001). Instead, it's whatever that ratio approaches, as your choice for dt approaches 0.

   

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   It is equal to the slope of the line tangent to the graph at a *single* point.

8. 23:57 · 29 May 2026 · Fri

   Keub

   Ese. The difference of distance traveled at time t [s(t)] and a small time dt [s(t+dt)] by change in time d(t).

   In pure math, the derivation is not this ratio d(s)/d(t) (t) for a specific choice of dt (=0.001). Instead, it's whatever that ratio approaches, as your choice for dt approaches 0.

9. 23:51 · 29 May 2026 · Fri

   Keub

   How does velocity depend on a distance vs time function.

   

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   Ese. The difference of distance traveled at time t [s(t)] and a small time dt [s(t+dt)] by change in time d(t).

10. 23:40 · 29 May 2026 · Fri

    

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    How does velocity depend on a distance vs time function.

11. 23:35 · 29 May 2026 · Fri

    "Maths has a tendency to reward you when you respect its symmetry."
    - 3b1b

12. 23:33 · 29 May 2026 · Fri

    

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    the Derivative of the Area (which is Integral) gives the Function. and the Integral of the Function gives the Area.

13. 23:22 · 29 May 2026 · Fri

    Keub

    Area of circle came from area of triangle. 😲

    

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    Area under graph.

14. 23:20 · 29 May 2026 · Fri

    Keub

    Area of circle came from area of triangle. 😲

    Which started from adding circumference (2πr) of smaller circles

15. 23:17 · 29 May 2026 · Fri

    

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    Area of circle came from area of triangle. 😲

16. 00:56 · 25 May 2026 · Mon

    Koi h? Dareka inai no