Parabola

Toolbar	Menu
Curve Curve Drawing	Curve Parabola > <Options>

Toolbar

Toolbar: Curve | Curve Drawing

Curve

Curve Drawing

Curve

Parabola >

The Parabola command draws a parabolic curve.

Steps

Follow the prompts for the selected option.
If no option is specified, the default is used.

Command-line options
MarkFocus	Places a point object at the focus location.
Half	Draws only half the parabola.
Focus	Lets you pick a focus point, direction, and end location. Focus steps Pick the focus. Pick a direction. This is the open direction. Pick the end. The focus to vertex distance and length of the parabola display at the command prompt.
Vertex	Lets you pick a vertex point, a focus point, and an end location. Vertex steps Pick the vertex. Pick the focus. This is the open direction. Pick the end. The focus to vertex distance and length of the parabola display at the command prompt.

Hyperbola

Toolbar	Menu
Curve	Curve Hyperbola > <Options>

Toolbar

Toolbar: Curve

Curve

Hyperbola >

The Hyperbola command draws a hyperbolic curve.

Steps

Follow the prompts for the selected option.

Command-line options
Default (Center)	The default option draws the hyperbola from the center, focus, and end. Center steps Pick the center. Pick the focus. Pick the end.
FromCoefficient	The FromCoefficient option uses the A and B coefficients of the hyperbola equation to define the curve. FromCoefficient steps Pick the center. Pick a direction. Pick the end. A / B These are the A and B coefficients of the equation that defines the hyperbola. The A coefficient represents the distance from the center point to the vertex of the hyperbola. If C is the distance from the center point to the foci of the hyperbola, then B2 = C2 - A2. The B coefficient can be considered the slope of the asymptotes.
FromFoci	The FromFoci option draws the hyperbola starting from the focus points. FromFoci steps Pick the first focus. Pick the second focus. Pick the end.
FromVertex	The FromVertex option draws the hyperbola starting from the vertices. FromVertex steps Pick the vertex. Pick the focus. Pick the end.

Command-line options

Default
(Center)

The default option draws the hyperbola from the center, focus, and end.

Center steps

Pick the center.
Pick the focus.
Pick the end.

FromCoefficient

The FromCoefficient option uses the A and B coefficients of the hyperbola equation to define the curve.

FromCoefficient steps

Pick the center.
Pick a direction.
Pick the end.

A / B

These are the A and B coefficients of the equation that defines the hyperbola. The A coefficient represents the distance from the center point to the vertex of the hyperbola. If C is the distance from the center point to the foci of the hyperbola, then B2 = C2 - A2. The B coefficient can be considered the slope of the asymptotes.

FromFoci

The FromFoci option draws the hyperbola starting from the focus points.

FromFoci steps

Pick the first focus.
Pick the second focus.
Pick the end.

FromVertex

The FromVertex option draws the hyperbola starting from the vertices.

FromVertex steps

Pick the vertex.
Pick the focus.
Pick the end.

Drawing and display options
MarkFoci	Places point object at the focus locations.
BothBranches	Both branches of the hyperbola are drawn.
ShowAsymptotes	The asymptotes of the hyperbola are displayed as it is drawn.

Drawing and display options

MarkFoci

Places point object at the focus locations.

BothBranches

Both branches of the hyperbola are drawn.

ShowAsymptotes

The asymptotes of the hyperbola are displayed as it is drawn.

Parabola

Steps

Focus steps

Vertex steps

Hyperbola

Steps

Center steps

FromCoefficient steps

A / B

FromFoci steps

FromVertex steps

See also