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This program requires that a
polynomial equation be written in standard form.
This can be accomplished with algebraic manipulations, if
necessary.
Coefficients of an equation up
to the 5th degree, and a constant, may be entered in the text
boxes.
Up to 3 characters (including
negative signs and decimal points) may be entered.
I placed this limitation to avoid "overflow" of
very large y values that could cause the program to crash.
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When
"Draw Graph" is clicked, the graph is drawn,
and more program features appear.
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A horizontal
slider automatically shows the x and y values for x = 0.
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The
slider may be moved in increments of .01 to change the x value
and view the corresponding y value of the equation.
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Any x value may also be typed to obtain a calculation of y.
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Also, the cursor may be held over any point on the grid to
view an approximate value of x and y on the status bar.
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A different
scale may be chosen, if needed.
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A different section of the curve may be viewed by right
clicking and dragging.
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The edit menu allows erasing the last equation drawn, or clearing
the entire graph.
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The
File menu includes save and print options.
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Many
interface choices allow for interesting color combinations,
which can help in graphing multiple equations or artistic/mathematical
play.
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A unique
"color picker", written by Richard
Grant, is provided for choosing custom point colors.
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After
writing the program, I "played" with some equations
and discovered some interesting projects.
A separate
page of activities is provided.
I invite
users to send me activities that they might discover (see
my email contact information at the bottom of this page).
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$39.50 |
