An Interesting Homemade Equation
8:28
A Nice Exponential Equation
8:51
A Very Nice Exponential Equation
9:27
An Interesting Nonstandard Equation from @SyberMath😄
8:41
An Interesting System of Differential Equations
11:31
Solving a 'Harvard' University entrance exam
12:34
an interesting limit
9:48
A Nice Cubic Polynomial Equation
14:11