plot frequency response in matlab

Hello every body. i solved this problem using change it to ode

m1x"+m2ry"=-k1(2x1-x2-x0)

m2x"+My"=-k2x+Ky-f

Note: m1,m2,r,k1,x2,x0,M,k2,K,f are known

now,how can i plot frequency response for this problem?

thanks alots

[Prasad Reddy]

Try to find transfer function and use 'bode' command.

syntax is

num=["enter the coefficients of the numerator of transfer function"]
den=["enter the coefficients od the denomenatoe of the transfer function "]
bode(num,den)

hope this works.

[saman ahmadi]

thank you very much for your answer