* zoom, allow student screen sharing
* Coding 1.3
It is straightforward to find the longest substring, but many student have trouble with the alphabetic orders
* search space, poker example
* why approximate solution, because computer use binary system.
1/8 in decimal is 0.001 in binary
https://www.rapidtables.com/convert/number/decimal-to-binary.html
* bisection search: key words, lower bound, upper bound, halving the search range
=== did not go through these below===
Draw a diagram on paper, show to the screen.
Binary number
TODO:
Review cubic root bisection search
Find my number
Simple algorithm, bisection search.
Stopped at cubic root, and diagram.
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