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Calculator Programming Tutorial

Programming Building Blocks I

Examples

Ballistic Pumpkins

Problem Analysis Equations

In the Problem Analysis page of this example, several equations are given as graphics, as conventional mathematical layout is not supported by HTML. These equations are described in this section.

Air Pressure Equations

The air pressure equations divide the height domain into three regions, and give a different equation for each region. The equation for the region 83245 < h is:

p(h) = 51.97 ((T + 459.7)/389.98)-11.388

The equation for the region 36152 < h < 82345 is:

p(h) = 473.1e1.73 - .000048h

The equation for the region h < 36152 is:

p(h) = 2116 ((T + 459.7)/518.6)5.256

Air Temperature Equations

The air temperature equations divide the height into the same three regions as the air pressure equations, and give a different equation for each region. The equation for the region 83245 < h is:

T(h) = -205.05 + 0.00164h

The equation for the region 36152 < h < 82345 is:

T(h) = -70

The equation for the region h < 36152 is:

T(h) = 59 - 0.00356h

Speed of Sound Equations

The equation for the speed of sound is:

a(T) = sqrt (γRT)

where “sqrt” indicates the square root of its argument.

Click here to return to the problem analysis of the pumpkin drop example.

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Copyright © 2002 Brian Hetrick
Page last updated 27 January 2002.

Brian’s Casio Calculator Corner

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