The Best of Creative Computing Volume 1 (published 1976) 

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Dynamic Modeling Using Fortran IV (sample run)

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SAMPLE RUN

Sample run of Forrester's World-2 Model below shows input data and output plot.
The following variables are used on the plot.

P POP, Population, billions of people

R NRFR, natural resources fraction remaining, dimensionless

$ CAP, Capital stock, billions of dollars

* POLR, pollution relative to 1970, dimensionless

Q QL, Forrester's index of the Quality of Life. dimensionless

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