$2-$ Requirements for Vibration experiment: $(($ using LabVIEW$))$ include a

screenshot of the work

a$.$ The user can enter the frequency and the amplitude of two signals.

b$.$ The user can decide whether to multiply the two signals or adding them.

c$.$ The program should plot the new signal and its power spectral density.

d$.$ There should be an option for saving the data. If the user decided to save the

data, then the data of the two generated plots will be saved in a file.