Where the idea of Runge-Kutta methods come from
1683
What's the motivation for Runge-Kutta methods?
12284
Mean Value Theorem Motivation
128695
Why do people use real values for the Wick-rotated time $\tau$?
29952
Time-ordering vs normal-ordering and the two-point function/propagator
24072
Intuitive explanation of why $\dim\operatorname{Im} T + \dim\operatorname{Ker} T = \dim V$
125529
A question about the idea of Laplace transform
134314
Good reading on the Keldysh formalism
62440
Programming a numerical method in the functional style
122651
What inspired Schrödinger to derive his equation?
64228
D'Alemberts Principle to solve a Classical Mechanics problem
62549
Chain Rule Intuition
43382
Runge-Kutta fourth order with negative stepsize
38839
Exponential of the differential operator
154880
Historic reasons for Left-Handed Coordinate System
21203
An intuitive explanation of the Taylor expansion
47598
Motivation behind the definition of tangent vectors
24928
Motivation behind introduction of measure theory