【正文】 2)f3=t* exp(a*t)laplace(f3)f4=sin(w*t)laplace(f4)f5=exp(a*t)*cos(w*t)laplace(f5)反拉式變換syms s af1=1/silaplace(f1)f2=1/(s+a)ilaplace(f2)f3=1/s^2ilaplace(f3)f4=w/(s^2+w^2)ilaplace(f4)f5=1/(s*(s+2)^2*(s+3))ilaplace(f5)Z變換：syms a k Tf1=exp(a*k*T)ztrans(f1)f2=k*Tztrans(f2)f3=k*T*exp(a*k*T)ztrans(f3)f4=sin(a*k*T)ztrans(f4)f5=a^kztrans(f5)反Z變換syms z a Tf1=z/(z1)iztrans(f1)f2=z/(zexp(a*T))iztrans(f2)f3=T*z/(z1)^2iztrans(f3)f4=z/(za)iztrans(f4)f5=z/((z+2)^2*(z+3))iztrans(f5)3. 控制系統(tǒng)模型的建立與轉(zhuǎn)化傳遞函數(shù)模型：num=[b1,b2,…bm]，den=[a1,a2,…an]，零極點增益模型：z=[z1,z2,……zm]，p=[p1,p2……pn]，k=[k]，建立系統(tǒng)模型和傳遞函數(shù)模型：num=[1,1,0]den=[1,5,6]T=Gs1=tf(num,den)Gz1=tf(num,den,T)零極點增益模型：z=[0,1]p=[2,3]k=[1]T=Gs2=zpk(z,p,k)Gz2=zpk(z,p,k,T)傳遞函數(shù)模型和零極點增益模型相互轉(zhuǎn)化傳遞函數(shù)模型轉(zhuǎn)化零極點增益模型：num=[1,1,0]den=[1,5,6]T=Gs1=tf(num,den)Gz1=tf(num,den,T)[z,p,k]=tf2zp(num,den)Gs2=zpk(z,p,k)Gz2=zpk(z,p,k,T)零極點增益模型轉(zhuǎn)化傳遞函數(shù)模型：z=[0,1]p=[2,3]k=[2]