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- Refers to the automatic sequencing from START to START+DUR in equal
- increments given by STEP with expression evaluation done at each of
- these values when DAN executes a statement that references a variable.
- Thus, the statement PLOT( exprA - exprB) means determine the values of
- 'exprA' and 'exprB' at START, subtract the values, and plot the result;
- determine the values of 'exprA' and 'exprB' at START + STEP, subtract
- the values, and plot the result; ...; determine the values of 'exprA'
- and 'exprB' at START + DUR + ?, subtract the values and plot the
- result.
-
- Any statement that references a data file or one of
- DAN's pre-defined variables (i.e. T, X, OPER) causes an implicit loop
- to be executed with processing taking place at each step time.
-