Weierstrass Substitution
25:46
integral of sqrt of tanx
9:05
Integrate [sin( x)/ (sin x + cos(x))]
13:13
Integrating using t=tan(x/2) substitution - [The Weierstrass substitution]
19:14
The strange cousin of the complex numbers -- the dual numbers.
20:37
Integrate x^-x dx
18:01
Deriving the Gamma Function
12:36
The Most Beautiful Equation
16:54