Lord [name and surname] is the honorific for the younger sons of dukes and marquesses (firstborn sons commonly use a courtesy title, one of their fathers' more junior titles; the children of earls and peers below that rank use the honorific The Honourable).
Etymology. Greek mathematician Pythagoras (c.570-c.495 BC), who did something mathematical. The word mathematics comes from the Greek Î¼Î¬Î¸Î·Î¼Î± (mathÄma), mÃ¡thÄma which means in Ancient greek what one, learns what one gets to, know hence also study and, science and in Modern greek just. lesson
Math is a Language of Symbols. In math, symbols are the main part of the concise, specific language that we use. In this lesson, we will try to stick with the symbols that would be used most often.Note that a number of symbols are not always available in certain kinds of software, so we have alternatives.quare brackets that look like this: and curly brackets that look like this: { }. are used to group items together. Grouping symbols are used to tell you to do the math of the items in the group first.