Hands-On Math

Last Revision March, 2011

Last Revision March, 2011

Two parameters, step size and number of steps, are employed in calculating the table and its graphs.

Another two parameters, a velocity v, and

Were

Input boxes are given solid outlines, except for that of

The table and graphs are calculated using g, m, vt and the step size Dt.

The number of steps, together with Dt, determine the time period that is covered. There is a limit, 1000, to the number of steps that can be input by the user.

Rather than input the area

The default value of

There is another aspect to the choice of step size. The user may often prefer to read the table at exact decimal intervals of seconds such as 10 milliseconds or 10 seconds.

The end value shown for the ordinates or abscissas can be mentally divided by 10 and then taken as the amount between tick marks. Scroll the table to obtain more precise values.

Browsers are not standardized. With many web browsers, calculation will occur after the user's

The calculation process catches many errors. These result in an error message that appears just below the table of parameters. With these errors the spreadsheet table is blanked. To see an example, type 1001 as the

A user input that results in a "divide by zero" is caught by the System and a less than friendly page pops up. To return from the error page, should this happen, click its "back" button and then correct the error or use

Individuals preparing their own spreadsheet would pay little attention to introducing warnings against their inappropriate entries. There is a saying in the computer world "Garbage in then Garbage out".

a = g * [1 - v

The cell expressions for the table are provided at the top of the table on the 1D calculator page.

Click

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