[Solved] Quantum Physics Ex 3-Subroutine used as a checkpoint for debugging

Exercise 1: Checkpoints

Write a subroutine to be used as a checkpoint for debugging.

• Include a control on a logical variable (Debug=.true. or .false.)
• Include an additional (optional) string to be printed
• Include additional (optional) variables to be printed

Exercise 2: Documentation Rewrite Exercise 3 of Week 1 including:

• Pre- and post- conditions.
• Error handling
• Checkpoints