code: def moy(t1, t2, b1, b2, t):
      return (1.0 * (t2 * b1 - t1 * b2) + t * (b2 - b1)) / (t2 - t1)
  
file_path: pythran/pythran/tests/cases/brownian.py
imports: import random
  from math import sqrt
label_desc: Use image node_id 4 for calling a global function with example usage: moy(t1, t2, b1, b2, t) and returns: unknown