Monthly Archives: May 2010

Operators, Functions, and Properties – part 5

In earlier parts of this series, we have talked about devices that change their state when you press some button.  Such devices are both very normal and very common.  A very simple example of this is a counter, where the … Continue reading

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Representations – Black Boxes – Equivalence 2

We ended the previous post in this series by looking at this figure: To recap, a black box is something where we have access to the behavior but not the internal organization.  We can propose a model for a black … Continue reading

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Operators, Functions, and Properties – part 4

In the two previous posts in this series, we looked at decidedly different models that each could explain the same simple external behavior.  To recap, we have been looking at internal models for a device that looks like this: and … Continue reading

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Operators, Functions, and Properties – part 3

In this series we’ve been looking at operators and the models upon which they operate.  We started by introducing a simple device like the one pictured below: where every time the red button is pushed, the single digit on the … Continue reading

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Operators, Functions, and Properties – part 2

In the previous post I introduced the idea of a device like the one pictured below: where the single digit on the little screen was observed to cycle through a repeating pattern every time the red button is pushed, as … Continue reading

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