Alexey Ivanov

## 1160 Reputation

12 years, 53 days

## Circle in 3d ...

Maple 15

Parametric equation of a circle in 3d by three points. Draghilev method.

CIRCLE_3_POINTS_geom3d_2.mw

## Isolation of sides of the surface on the...

Maple 15

One way is coloring a surface on both sides. We build equidistant surface with very small radius and stain the equidistant surface in color different from the color of the original surface.
Examples coloring of surfaces on both sides.  Radius equal to abs (0.0001).
x3-0.5*exp(sin(x1+2.5*x2+x3))=0;
(x1^2+x2^2-0.4)^2+(x3+sin(x1*x2+x3))^4-0.1=0;

2_COLORS.mw

## Parallel curves on surfaces...

Maple 15

Parallel curves on surfaces. The distance between the points of the curves is measured along the curves of intersection of the surface and perpendicular planes.
(According to tradition, it also does not make sense.)

equidistant_curve_surface_MP.mw

Maple 15

General description of the method of solving underdetermined systems of equations. As a particular application of the idea proposed a universal method  kinematic analysis for all kinds of  spatial and planar link mechanisms with any number degrees of freedom.  The method can be used for powerful CAD linkages.
http://www.maplesoft.com/applications/view.aspx?SID=154228

## Equidistant curves...

Maple 15

equidistant_curve_MP.mw  Equidistant curves to the curves on the surface. (Without any sense, but real.)

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