13 lines
442 B
Plaintext
13 lines
442 B
Plaintext
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e1:2*x - 2*y + z - w = 7;
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e2: - x + 4*y - 5*z + 3*w = 1;
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e3:x + y - z + w = 4;
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e4:-4*x + 2*y + z - 2*w = 6;
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linsolve([e1,e2,e3,e4],[x,y,z,w]);
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solve(x^3-21*x+20=0);
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plot2d([x^2-2*x+3],[x,-5,5]);
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plot2d(cos(2*x),[x,-4,4],[color,green]);
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plot2d(sin(1/x),[x,-0.1,0.1],grid2d);
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plot3d(x^2+y^2,[x,-1,1],[y,-1,1],[palette, [gradient, red, orange, yellow, green]]);
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plot3d(x^2-y^2 + 2*x*y^2+1,[x,-3,3],[y,-3,3],[palette, false]);
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