//Chapter-4,Example4_15_23,pg 4-38

d=7.23*10^3                             //density

Y=11.6*10^10                            //Young's modulus

n=20*10^3                               //frequency of wave

k=1                                     //consider 1st harmonic

l=(k/(2*n))*sqrt(Y/d)                   //arranging formula of natural frequency

printf("length =")

disp(l)

printf("meter")