Crate ariprog

Functions

• get_common_difference
  Returns the common difference between two terms of an arithmetic progression
• get_first_term
  Returns the first term of an arithmetic progression
• get_how_many_terms
  Returns the number of terms in an AP
• get_nth_term
  Returns the nth term of an arithmetic progression
• insert_arithmetic_means
  Returns an arithmetic progression with the first term + arithmetic means + nth_term, as a vector