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- //Zadanie 2, grupa A - METODA OBSZARÓW KOLOKACJI
- clear
- figure
- n11=integrate ('1-x' , 'x' , 0, 1/3)
- n12=integrate ('2*x-x^2' , 'x' , 0 ,1/3)
- n13=integrate ('-x^3+3*x^2' , 'x' , 0 ,1/3)
- n21=integrate ('1-x' , 'x' , 1/3, 2/3)
- n22=integrate ('2*x-x^2' , 'x' , 1/3, 2/3)
- n23=integrate ('-x^3+3*x^2' , 'x' , 1/3, 2/3)
- n31=integrate ('1-x' , 'x' , 2/3, 1)
- n32=integrate ('2*x-x^2' , 'x' , 2/3, 1)
- n33=integrate ('-x^3+3*x^2' , 'x' , 2/3, 1)
- q1=integrate ('x-1.5' , 'x' , 0 , 1/3)
- q2=integrate ('x-1.5' , 'x' , 1/3 , 2/3)
- q3=integrate ('x-1.5' , 'x' , 2/3 , 1)
- A3=[n11 , n12, n13 ; n21 , n22 , n23 ; n31 , n32 , n33]
- b3=[q1;q2;q3]
- t3=linsolve (A3,b3)
- x=0:0.1:1
- y3=1.5+t3(1,1)*x+t3(2,1)*x^2+t3(3,1)*x^3
- plot (x,y3,'.-g')
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