Implicit Euler vs Explicit Euler

Comparing implicit vs Explicit Euler

Comparing implicit vs explicit Euler on a mass-spring-damper system.
The implicit method is based on the following paper:
D. Baraff and A. Witkin, “Large steps in cloth simulation,” in Proceedings of the 25th annual conference on Computer graphics and interactive techniques - SIGGRAPH ’98, 1998, pp. 43–54.