19 lines
319 B
Plaintext
19 lines
319 B
Plaintext
zad.1
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Solve[{2x-2y+z-w==7,-x+4y-5z+3w==1,x+y-z+w==4,-4x+2y+z-2w==6},{x,y,z,w}]
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zad.2
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Solve[x^3-21x+20==0,x]
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zad.3
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Clear(x) #czyszczenie zmiennej
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Plot[x^2+2x+3,{x,-4,4}]
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Plot[cos(2*x),{x,-4,4}]
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Plot[sin(1/x),{x,1,4}]
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Plot3D[x^2+y^2,{x,-2,2},{y,-2,2}]
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Plot3D[x^2-y^2+2*x*y^2+1,{x,-2,2},{y,-2,2}] |