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Essential PTC® Mathcad Prime® 3.0 by Brent Maxfield

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Chapter 5

Units!

Abstract

One of the most powerful features of PTC Mathcad is its ability to attach units to numbers. PTC Mathcad units will be one of your best friends as a scientist or engineer. PTC Mathcad units will simplify your work, and they are one of the best means you have of catching mistakes. You may remember the 1999 Mars Climate Orbiter that ended in disaster by burning up in the atmosphere of Mars. Why? Because engineers failed to convert English measures of rocket thrust into metric measures. Using PTC Mathcad units will help prevent problems like this from occurring. Once units are attached to values, PTC Mathcad understands the unit dimensions and can display the units in any desired unit system. It does this easily and automatically. ...

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