Calculate the problem in Example by using the Runge-Kutta computer program RUNGA (see Chapter 8).
Example
Use the digital computer to solve the problem of a spring-mass system excited by a triangular pulse. The differential equation of motion and the initial conditions are given as
[ 0.5x"+8Π2x=F(tx1=x'1=0) ]
![37_The Runge-Kutta.jpg](https://secure.tutorsglobe.com/CMSImages/37_The Runge-Kutta.jpg)
The triangular force is defined in Figure.