There is a multitude of mathematical abbreviations and symbols, from the simple “x” to more involved constructions. One abbreviation you may have encountered is X E R or x∈R, where R is the symbol for “the real numbers”. Real numbers include all positive integers, negative integers, zero, positive fractions (rational […]
There are a lot of products out there that claim to completely eliminate odors from all sorts of things. Some of them can be pretty effective. We all have a few items in the home that have an odor we just can’t get rid of, so we try to cover […]
Inches and feet are part of the imperial system of measurement, which is used in the United States, Great Britain, Canada, and other places where English is spoken. In contrast, the metric system is used by most people who live outside the English-speaking world. For example, Japan uses metric units […]