How can I solve second order ODE using Thomas algorithm

I have the following problems:

1) y''-y=0 , 0<x<1

y(0)=0

y(1)=1

2) y''+5y'+6y=0 , 0<x<1

y(0)=0

y(1)=1

Can someone help me with solving them using Thomas algorithm

[Jan]

What have you tried so far an what is your specific problem?