%符號函數(shù)加、減、乘、除
echo on
syms s
y1=(s+5)/((s+1)*(s+2))
y2=(s+1)/(s+5)
y3=y1+y2
y4=y1-y2
y5=y1*y2
y6=y1/y2

%符號矩陣加、減、乘、除
a=sym('[1/(s+1),s;0,s+2]')
b=sym('[s 2*s ;3*s^2 4/s]')
d=sym('[1 2;3 4]')
c1=a+b
c2=a+d
c3=a*d  %符號矩陣乘
c4=a.*d  %符號數(shù)組乘
c5=a./d  %符號數(shù)組右除
c6=a.\d %符號數(shù)組左除
c7=inv(b)%符號矩陣求逆
%符號矩陣與符號函數(shù)加、減、乘、除
y7=y2+a
y8=a-y2
y9=a*y2
y10=a/y2