In mathematics, the Weierstrass function is a pathological example of a real-valued function on the real line. The function has the property that it is continuous everywhere but differentiable nowhere. It is named after its discoverer Karl Weierstrass. Read more
Karl Theodor Wilhelm Weierstrass (October 31, 1815 - February 19, 1897) was a German mathematician who is often cited as the "father of modern analysis". Read more