Level 3
Level 3 requires the basics of vector calculus, differential and integral calculus. Suitable for undergraduates and high school students.

# IllustrationGraph of a shifted Dirac delta function (1d)

Sketched one-dimensional Dirac delta function $$\delta(x-c)$$ shifted to the point $$x = c$$. The area enclosed by the Dirac delta function is 1. The delta function is infinitely narrow and infinitely high.