Look at the number Mod 1. When you look at a number Mod n, you just divide by n, and look at the remainder. So here you divide by 1, and the remainder is just the fractional part. The best way to do this depends on the language.
Simple paint a long horizontal black stroke on a scratch piece of paper and then once it dries paint your watercolors colors in short vertical strokes on top of it. If the paint appears to sit on top of the black stroke the paint is opaque.
Slate gray is a gray color with a slight azure tinge that is a representation of the average color of the material slate. As a tertiary color, slate is an equal mix of purple and green pigments. The exterior shells of supercomputers are often colored various shades of slate gray. 2  The iPhone 5 and the iPad Mini comes in a Dark slate gray colored aluminum body contrasted with black. 3  Western Electric in their 25-pair (and multiples) cable for pairs 5-10-15-20-25 used the term SLATE for the color instead of gray.