Make your R data.table code more efficient and elegant with these special symbols and operators. Plus, learn about the new fcase() function R data.table code becomes more efficient — and elegant — ...

Creating mnemonic phrases can help you remember the order of elements, especially for the first 20 elements or specific groups. These phrases are general and are available on other free online sources ...

In physics, we symbolise everything with an English/Greek alphabet, such as the speed of velocity, wavelength and other quantities as well. To make it more convenient for the students, teachers or ...