Decades: 0s 10s 20s 30s 40s - 50s - 60s 70s 80s 90s 100s
Years: 49 50 51 52 53 - 54 - 55 56 57 58 59
Births
Deaths
... spaces. Intuitively, if x is an element of V, the derivative of f at the point x is a continuous linear map which approximates f near x. Formally, f is call ...