Free Mat Lab

Purpose: To explore freemat and see how it can be used in an engineering environment,

Experiment: 
              Display of sine graph:

             Display of sine and cosine graphs.

Examples:
1)
It is possible to solve the following circuit with the gven information :V1 = 15V, V2 = 7V, R1 = 20Ω, R2 = 5Ω, and R3 = 10Ω

Setting the information into matrix form we get-->

The current found through R3 is -0.1857A




2)
Circuit 1 has a time constant of 100 ms and circuit 2 has a time constant of 200ms. The output is 2e^(-t/ τ) where τ is the time constant. Using graphs, identify which circuit will have the lower output sooner.

Circuit A will have a lower output.

comparing the curves of 2e^(-t/tau) and 2(1-e^(-t/tau)):

3)

Determining the output of adding the sinusoids: 3sin(2t+10) and 5cos(2t-30)

The function and their sum.

When we change the frequency to 10Hz we have:

This shows that changing the frequency changes the period.