matlab课后习题及答案以供大家学习及参考
>> b=[3 2 5 4 6]; >> [r,s,k]=residue(b,a) r =
1.1274 + 1.1513i 1.1274 - 1.1513i -0.0232 - 0.0722i -0.0232 + 0.0722i 0.7916 s =
-1.7680 + 1.2673i -1.7680 - 1.2673i 0.4176 + 1.1130i 0.4176 - 1.1130i -0.2991 k = []
3.7 计算多项式4x4 12x3 14x2 5x 9的微分和积分。 >> p= [4 -12 -14 5 9]; >> pder=polyder(p); >> pders=poly2sym(pder) >> pint=polyint(p); >> pints=poly2sym(pint) pders =
12*x^2-24*x-14 pints =
x^4-4*x^3-7*x^2+5*x
2
解方程组 3
2
942
0 13
11x 6 6 6
3.8 。
>> a=[2 9 0;3 4 11;2 2 6]; >> b=[13 6 6]';