例文
- The external force K is multiplied by time ( " t " ), where " K " is a positive scalar constant, however this can be varying and or negative as well . " S " represents the state of a cell ( + 1 or " 1 ), the second component takes the sum of the four neighbouring cell states ( up, down, left & right ) and multiplies it by another scalar quantity, this is analogous to a coupling constant ( " J " ).
