Welcome to this blog. This blog is created with Docusaurus 3.

This is my first post on Docusaurus 3.

Fundamental Theorem of Calculus
Let $f:[c,b] \to \R$ be Riemann integrable. Let $F:[c,b]\to\R$ be $F(x)= \int_{c}^{x}f(t)dt$. Then $F$ is continuous, and at all $x$ such that $f$ is continuous at $x$, $F$ is differentiable at $x$ with $F'(x)=f(x)$.

A whole bunch of exploration to follow.