## Calque # Expressions 2 + 2 * 2 sqrt(3^2 + 4^2) 2 inch to cm cos(45 deg) # Variables a = 25 b = a * 2 postal code = 1122 # Expression trees animals: cats = 2 dogs = 3 plants: trees = 20 vegetables: potatos = 10 carrots = 10 # Functions pow2(x) = x ^ 2 pow2(6) # Last result 2 * 2 last + 1