Mon Apr 26 17:32:54 2021 

trapezoid_test
  R version 3.4.4 (2018-03-15) 
  trapezoid estimates an integral using the trapezoid rule.

  f(x) = x^2

  trapezoid ( f,  0 , 1 , m =  2  ) =  0.375 
  trapezoid ( f,  0 , 1 , m =  10  ) =  0.335 
  trapezoid ( f,  0 , 1 , m =  100  ) =  0.33335 
  trapezoid ( f,  0 , 1 , m =  1000  ) =  0.3333335 

trapezoid_test
  Normal end of execution.
Mon Apr 26 17:32:54 2021