• ← DigitCount
• → FromDigits

Floor

WMA link

Floor[x]

gives the greatest integer less than or equal to x.

Floor[x, a]

gives the greatest multiple of a less than or equal to x.

• • Floor[10.4]

• • Floor[10/3]

• • Floor[10]

• • Floor[21, 2]

• • Floor[2.6, 0.5]

• • Floor[-10.4]

For complex x, take the floor of real an imaginary parts.

• • Floor[1.5 + 2.7 I]

For negative a, the smallest multiple of a greater than or equal to x
is returned.

• • Floor[10.4, -1]

• • Floor[-10.4, -1]