An Arithmetic must have at least one incoming DataFlowEdge, representing the source values. When a DataFlowEdge sourced from a Arithmetic is evaluated, the value provided represents the arithmetic combination of the source values according to the operationType of the Arithmetic.
are defined for Arithmetic:
each of these operations correspond to addition, subtraction, multiplication
and division, respectively. For
DIVIDE arithmetic, the divisor
used in the arithmetic is the first incoming
DataFlowEdge with the
name "divisor". If the divisor
used in a
DIVIDE arithmetic is equal to zero, the value of the
node will not be numeric ("not-a-number", or
trueif the current element has been generated.