Notation and Approximation

noun

• A technical system of symbols used to represent special things.
  • synonyms: notational system
• A comment or instruction (usually added. )
  • usage: "his notes were appended at the end of the article"; "he added a short notation to the address on the envelope"
  • synonyms: note, annotation
• The activity of representing something by a special system of marks or characters. .

• (n.) Literal or etymological signification.
• (n.) Any particular system of characters, symbols or abbreviated expressions used in art or science, to express briefly technical facts, quantities, etc. especially, the system of figures, letters, and signs used in arithmetic and algebra to express number, quantity or operations.
• (n.) The act or practice of recording anything by marks, figures or characters.
• (n.) The act or practice of recording anything by marks, figures or characters.
• (n.) Any particular system of characters, symbols or abbreviated expressions used in art or science, to express briefly technical facts, quantities, etc. especially, the system of figures, letters, and signs used in arithmetic and algebra to express number, quantity or operations.
• (n.) Literal or etymological signification.

noun

• An approximate calculation of quantity or degree or worth.
  • usage: "an estimate of what it would cost"; "a rough idea how long it would take"
  • synonyms: estimate, estimation, idea
• The quality of coming near to identity (especially close in quantity. )
• An imprecise or incomplete account.
  • usage: "newspapers gave only an approximation of the actual events"
• The act of bringing near or bringing together especially the cut edges of tissue.
  • synonyms: bringing close together

• (n.) A continual approach or coming nearer to a result; as, to solve an equation by approximation.
• (n.) The act of approximating; a drawing, advancing or being near; approach; also, the result of approximating.
• (n.) An approach to a correct estimate, calculation or conception or to a given quantity, quality, etc.
• (n.) A value that is nearly but not exactly correct.