norm(coord(3,4))
Let's evaluate: norm(coord(3, 4))
ⅰ norm(coord(3, 4)) = 32 + 42
32 + 42
ⓘ Powers are computed before multiplications, additions and subtractions. A power with a positive integer exponent is a repeated product: 32 = 3×3 = 9■Calculate powers before multiplications, additions and subtractions. A power with a positive integer exponent is a repeated product: 42 = 4×4 = 16
9 + 16
ⓘ Parentheses are computed first: 9 + 16 = 25
25
ⓘ The square root of a nonnegative real number is the nonnegative number whose square is that number: 25 = 5 because 52 = 25
▶Result:   5