Thanks a ton Andre. You confirmed that I was doing it correctly. I realize now that I lost sight of what I ultimately had to do and thought I needed to be able to evaluate the resulting integral. When I saw that it wasn't simplified, I thought I was doing the mechanics wrong. You were right on. I used the equality to make a reduction formula and set up a small table of values. I appreciate the course correction.

Glad I could help, Judith. Iterated integrals are fun and very important. You can use them to define the factorial (k!) for any real number, not just positive integers! You can even use them to define a
fractional derivative, e.g., the 1/2-th derivative of ln(x). Strange and beautiful.

## Comments

fractionalderivative, e.g., the 1/2-th derivative of ln(x). Strange and beautiful.