To hold a thought in your mind to not forget it.

function of which given function is derivative. Very important, necessary or essential.

mark used to enclose words or figures. Placement of a word or words within ( ) [ or ]. To put into the same category or range together.

suggested but not directly expressed. To suggest something, without saying it directly.

To know someone or something because you have seen or heard him or her or experienced it before.

Part of a book, newspaper, etc.. To divide something into smaller parts.

gladly received. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

For a reason.

situated on or near outside. Beyond the limits or edges of some place, thing. Area around or near something, such as a building. situated beyond boundaries of.

Not from original ideas; from somewhere else. thing derived from another source.

Admiration for someone. To follow the established rules.

supporter of idea or theory.

requiring care and skill because difficult or awkward.

Number by which another number is multiplied. numerical or constant quantity placed before and multiplying variable in algebraic expression.

totally.