ex5_9.dir

来自「Programs for the book Advanced Engineeri」· DIR 代码 · 共 23 行

ex5_9

xvec =

Dx=x+y,Dy=4*x+y


initc =

x(0)=1,y(0)=1

 
x1 =
 
1/4*exp(-t)+3/4*exp(3*t)
 
 
x2 =
 
3/2*exp(3*t)-1/2*exp(-t)
 
diary off