WWW.CELYSVET.CZ - encyklopedie: pokojov� rostliny, psi, ko�ky, st�ty ___________________________________________________________________________________

P��mka (jen v prostoru)


SV�T GEOMETRIE


V prostoru


Sm�rov� vektor n = (a,b,g)


1. Bodem Po na p��mce.

Rovnice:

Kanonick� vyj�d�en�:


2. Dv�ma body P1 a P2. Polo��me n = P1P2 = (x2 - x1, y2 - y1, z2 - z1)


P��klad :

Po = [2, 4, -1], p = (2, 3, -1)

Po = [2, 4, -1], s = (1, -2, 4)

Po = [2, 4, -1], w = (-3, -5, -2)

maj� pr�se�nice ve stejn�m bod� Po

___________________________________________________________________________________