1 семестр / Линейная Алгебра / 23_Кучеренко Антон_Модуль2_Занятие2

>> A=14,B=10,C=23,D=-70;

A =

14

B =

10

C =

23

>> x = -10:0.5:10; y = -10:0.5:10;

>> [X,Y]=meshgrid(x,y);

>> Z = (-A*X-B*Y-D)/C;

>> plot3(X,Y,Z), box on

>>

>> xlabel('x'),ylabel('y'),zlabel('z')

>> line([-10 0 0; 10 0 0],[0 -10 0; 0 10 0],[0 0 -10; 0 0 10],'linewidth',2,'color','black')

>> hold on

>> grid on

>> line([0 14],[0 10],[0 23],'linewidth',2,'color','blue')

>> axis equal

>> plot3(5,0,0,'*b',0,7,0,'b*',0,0,70/23,'b*')

>> plot3(5,0,0,'*b',0,7,0,'b*',0,0,70/23,'b*','MarkerSize',4)

>> plot3(5,0,0,'*b',0,7,0,'b*',0,0,70/23,'b*','MarkerSize',8)

>> plot3(5,0,0,'bo',0,7,0,'bo',0,0,70/23,'bo','MarkerSize',8)

>> title('14x+10y+23z-70=0')