Prześlij pliki do 'zajęcia 12'

zadania

zajęcia 12/octave.txt

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+zad.1
+
+A=[2 -2 1 -1; -1 4 -5 3; 1 1 -1 1; -4 2 1 -2];
+f=[7 1 4 6];
+u=A/f'
+
+zad.2 
+
+c=[1 0 -21 20];
+roots(c)
+  
+zad. 3
+
+x=-4:0.05:4;
+y=x.^2-2*x+3;
+plot(x,y,"-g")
+  
+x=-2*pi:0.035:2*pi;
+y=cos(2*x);
+plot(x,y,".r")
+
+x=-4*pi:0.05:4*pi;
+y=sin(1/x);
+plot(x,y,"b",'LineWidth',0.25)
+
+x=-3:0.1:3;
+y=-3:0.1:3;
+[X,Y]=meshgrid(x,y);
+mesh(X,Y,X.^2+Y.^2)
+
+x=-3:0.1:3;
+y=-3:0.1:3;
+[X,Y]=meshgrid(x,y);
+mesh(X,Y,X.^2-Y.^2+2*X*Y.^2+1)