unitnormal.mws

diffgeometry[unitnormal] - Jednotková normála plochy

Calling Sequence

unitnormal(X(u,v),u,v)

Parameters

X(u,v) - plocha daná vektorovou funkcí [x(u,v), y(u,v), z(u,v)] parametrů u, v.

u,v       - parametry plochy

Description

Examples

Nejprve je třeba nastavit cestu, kde máte uloženou knihovnu "diffgeometry", např

>    restart;

>    libname:=libname,"D:/Sarka/Maple/diffgeometry/libsarka":

>    with(diffgeometry);

[AsymptoticDir, D1, D2, E, EFG, F, G, GaussCurvature, L, LMN, M, MeanCurvature, N, PrincipalMatrix, arclength, arclengthNumeric, curvature, dp, dupin, frenet, l, m, n, normalize, nrm, revolve, screw, t...
[AsymptoticDir, D1, D2, E, EFG, F, G, GaussCurvature, L, LMN, M, MeanCurvature, N, PrincipalMatrix, arclength, arclengthNumeric, curvature, dp, dupin, frenet, l, m, n, normalize, nrm, revolve, screw, t...

Normála sféry

>    S:=[R*cos(u)*cos(v),R*sin(u)*cos(v),R*sin(v)];unitnormal(S,u,v);

S := [R*cos(u)*cos(v), R*sin(u)*cos(v), R*sin(v)]

[cos(u)*cos(v)^2/abs(cos(v)), sin(u)*cos(v)^2/abs(cos(v)), cos(v)*sin(v)/abs(cos(v))]