May 2018
Beginner to intermediate
429 pages
7h 10m
English
In the 1970s a fellow by the name of Dan Bricklin was at Harvard watching a professor teach finance. The professor had written a grid of numbers on the blackboard and was explaining some sort of financial model. When he changed a number, he had to erase and recalculate all the numbers that depended on it.
Dan thought that it would be nice to write a program that did that automatically, and the first spreadsheet, called VisiCalc , was born. In 1979 it became available for ...
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