4:24 PM
In mathematics and computer science, the floor function is the function that takes as input a real number, and gives as output the greatest integer less than or equal to , denoted or ⌊ ⌋.Similarly, the ceiling function maps to the least integer greater than or equal to , denoted or ⌈ ⌉.. For example, = ⌊ ⌋ = and = ⌈ ⌉ =, while ⌊ ⌋ = ⌈ ⌉ =.Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings.
Download Image:
download