Search Results for “drag”
Area Under Sine (draggable)
Observe the definite integral of sine, or the area between the function sin(x) and the x axis, and how it changes between different bounds by dragging the boundaries, a and b. What happens to the area when the interval is 2Π? Why?
Example: Draggable Point on a Locus
From "Creating HTML5 Apps with Geometry Expressions." Download the GX file to see how this app was made.
Simple Similar Triangles
Drag points A, B, and C to change the size and shape of the blue triangle, and its white counterpart that is similar (constrained by proportional SAS). Drag the Red point D to change the ratio in sizes. Observe the multitude of calculated output lengths and angles, and how they match the proportion value, proving similarity, regardless of the triangles' shapes/sizes.
Binary Test
Drag the beads to form the number displayed. Drag the bead along the wire by clicking on the bead's center point. Push the bead up to represent the binary digit 1, drag the bead down to represent the binary digit 0. Click the refresh button to get another number.
gear related to belt
We imagine two wheels connected by a belt which is wrapped in a figure 8, so that the wheels rotate in opposite directions. We show half the belt. Drag the red point to see it move. Now imagine we cut the belt at the blue point. You can drag the two blue points to see the involute curves. Press Show to turn the curves on permanently. Now drag the red point again, to observe how involute gears mimic a belt drive.
parabola envelope
We use a trick to let the trace "open up" as you drag a point. The trick is this: an initial point is given parametric location s*t, create a tangent at this point and its envelope as s varies. Now hide the original point and create another point with parameter t, and make it draggable. Dragging the new point changes the value of t and we see a trace from 0 to t.
