Parabola
If your equation describes a parabola, pressing { EOD } displays:
Press { --> }.
The program displays:
{ x } - Displays the x-coordinate for the vertex of the original parabola.
{ y } - Displays the y-coordinate for the vertex of the original parabola.
To continue, press { --> }.
The program displays:
{ ang } - Displays the angle of rotation.
{ x′ } - Displays the x-coordinate of the vertex with respect to the rotated axes.
{ y′ } - Displays the y-coordinate of the vertex with respect to the rotated axes.
To continue, press { --> }.
The program displays:
{ LR } - Displays the length of the latus rectum. (If the sign is positive, the parabola opens to the left. If it is negative, the parabola opens to the right.)
{ m } - Displays the slope of the latus rectum with respect to the original axes.
{ b } - Displays the intercept of the latus rectum with respect to the
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