0 a number or quantity that has something done to it in a calculation. For example, in 7 + y, 7 and y are the operands.
The operands considered mostly in engineering design include scalars and three-dimensional vectors.
The chain of append operations in the last line is reasonably efficient since the first three operands usually are extremely short lists.
The problem is that operands of some instructions may be bound to values at two different times: assembly time and link time.
We want to emit instructions by name and to have the assembler make sure the types and values of the operands are sensible.
Because a lifted parameter occurs as the operand in an application, it can assume only a single type.
We first change the semantics of the comma operator, by enforcing a sequence point between the (left-to-right) evaluation of the two operands.
This suggests that operand intrusions were reduced when the cued language had been inhibited on the preceding trial.
At a function application the value is only allowed to propagate when 'unchanged' is obtained for both the operator and the operand.
