verb

• (transitive, mathematics) To determine the value of something or the solution to something by a mathematical process.
• (intransitive, mathematics) To determine values or solutions by a mathematical process; reckon.
• (intransitive, US, dialect) To plan; to expect; to think.
• To ascertain or predict by mathematical or astrological computations the time, circumstances, or other conditions of; to forecast or compute the character or consequences of.
• To adjust for purpose; to adapt by forethought or calculation; to fit or prepare by the adaptation of means to an end.
• (chess) To imagine sequences of potential moves and responses without actually moving the pieces.