Construction and measure icons

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Creation of a free point

Creation of a free point with integer coordinates.

Creation of a linked point ( linked to line, ray, segment, vector, circle, circle arc, broken line or polygon)

Midpoint creation.

Creation of an orthogonally projected point on a  line, ray, segment, vector.

Creation of a point defined through abscissa relative to two other points.

Coordinates-defined point creation in a frame.

Affix-defined point creation in a frame

Gravity center of a triangle creation.

Barycenter creation.

Creation of a point image of another through a translation vector of which is the sum of two vectors.

Creation of a point image of another through a translation vector of which is the product of a vector and a number.

Creation on a point inside a polygon. This point can be moved but will stay inside the polygon.

Frame creation

Intersection of two objects creation (lines, rays, circles, circle arcs).

Line creation through two points.

Parallel line creation. Click first on a line, ray, vector or segment then on a point.

Perpendicular line creation. Click first on a line, ray, vector or segment then on a point.

Angle bisector creation.

Perpendicular bisector creation.

Horizontal line creation.

Vertical line creation.

Line defined through point and slope creation.

Line defined by an equation in a frame. The equation may be of any kind, for example 2*x+3*y-5 = 0 or x = rac(2) or y = rac(2)*x+1

Segment creation.

Ray creation.

Vector creation (it is a segment with an arrow not a real vector).

Circle through center and point creation.

Circle through center and radius creation.

To create a parallelogram by clicking on three vertexes.

Direct square creation

Direct triangle creation

Polygon creation.

Regular polygon creation

Broken line creation.

Non-oriented angle mark creation.

Oriented angle mark creation.

Segment mark creation.

Length measure.

Abscissa measure relative to two other points. Points have to be aligned.

Line slope measure in a frame measure.

Abscissa in a frame measure.

Ordinate in a frame measure.

Affix in a frame measure.

Non-oriented angle measure.

Oriented angle measure.

Scalar multiplication measure.

Creation of image objects through a translation. Click first on the starting point and ending point of the translation vector. Vector of translation blinks. Then click on an object to create it's image (line; ray, segment, circle, circle arc, polygon, broken line). You can click on several objects (as long as the vector is blinking).

Creation of image objects through a translation by giving the translation vector coordinates in frame. Enter first the vector coordinates in the dialog box then  click on an object to create it's image (line; ray, segment, circle, circle arc, polygon, broken line). You can click on several objects (as long as the translation vector is blinking).

Creation of image objects through a axial symmetry. Click first on the symmetry axis (line, ray, segment). Axis blinks. Then click on an object to create it's image (line; ray, segment, circle, circle arc, polygon, broken line). You can click on several objects (as long as the axis is blinking).

Creation of image objects through a central symmetry. Click first on the symmetry center (point). Center blinks. Then click on an object to create it's image (line; ray, segment, circle, circle arc, polygon, broken line). You can click on several objects (as long as the center of symmetry is blinking).

Creation of image objects through a central symmetry. Click first on the rotation center (point). A dialog box pops up. Enter the angle of rotation. Then click on an object to create it's image (line; ray, segment, circle, circle arc, polygon, broken line). You can click on several objects (as long as the center of rotation is blinking).

Creation of image objects through a  dilation. Click first on the dilation center (point). A dialog box pops up. Enter the dilation ratio. Then click on an object to create it's image (line; ray, segment, circle, circle arc, polygon, broken line). You can click on several objects (as long as the center of dilation is blinking).

Creation of image objects through a  direct similitude. Click first on the dilation center (point). A dialog box pops up. Enter the similitude ratio and angle. Then click on an object to create it's image (line; ray, segment, circle, circle arc, polygon, broken line). You can click on several objects (as long as the center of similitude is blinking).

Use of a virtual protractor in order to rotate a point around another one.

Little circle arc creation through three points. See the circle-arc.

Big circle arc creation through three points. See the circle-arc.

Direct circle arc creation through three points. See the circle-arc.

Indirect circle arc creation through three points. See the circle-arc.

Surface creation delimited by a circle, polygon, circle arc, point locus (closed). See the surface.

Surface creation delimited by two point locus.

Surface creation delimited by a point locus and a line. Locus extremities are projected on the line to define the edge. See the surface.

Surface creation delimited by a point locus and two points. See the surface.

Free value display creation. See the value display.

Linked to point display creation. See the value display.

Free text display creation. See the text display.

Linked to point display creation. See the text display.

Creation of a free line equation display (the equation is reduced, kind of y = ax+b or x = k).

Creation of a line equation display linked to a point ((the equation is reduced, kind of y = ax+b or x = k).

Creation a a free image display.

Creation of an image display linked to a point.

Creation of a formula editor associated with a calculation or a function.

Creation of a linked point locus generated through a linked point. See the linked point locus.


Creation of a cursor. The cursor may be horizontal or vertical, with integer values or not. See also the cursors.

Creation of a real function of one variable and if wished drawing of it's curve.

Creation on a point on a function curve by specifying it's abscissa.

Graph of a real function creation in a frame. See Function curve.

Tangent creation on a curve by specifying abscissa of the point. It is the result of an intern construction.

See Function curve tangent.

Pinning a mobile point. It won't be movable until unpinned.

Unpinning of a pinned point.

To get a point marked for trace. If Trace icon is activated, the points marked will leave a trace when moving.

To get a point unmarked for trace. The point will not leave a trace when moving.

New real calculus creation.

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