%符號分解因數(shù)
echo on
y1=sym('[s^2+5*s+6,s^2+2*s-3;s^2+2*s+1,s+1]')
factor(y1)
pause

y2=sym('(x^2-2)*(x-2)*(x-3)')
collect(y2)
pause

y4=horner(y3)
pause

y5=factor(y4)
pause

y6=sym('[sqrt(x^2+2*x+1);sin(x)^2+cos(x)^2;(a+b*i)*(a-b*i)]')
y7=simple(y6)
pause
y7=simple(y7)