Basic Signal Processing Blocks (Elementary Operators on Signals)

In addition to numbers which specify constant signals, primitive signal-processing blocks include the following:

-	output signal = first input signal minus the second input signal
	(referring to Fig.1, the ``first'' signal is the one nearest the black reference dot)
*	output signal = pointwise product of the two input signals
/	output signal = first input divided by second input (pointwise)
^	output signal = first input raised to the power of the second input (pointwise)
!	(``cut'') input signal is terminated (no output signal)
%	(``modulo'') output = remainder after dividing first input by second input
mem	output signal = input signal delayed by one sample (same as @(1))
@	output = first input delayed by (integer) value of second input