Question

As part of designing a robot, you have been asked to perform a number of programming tasks in MATLAB. In Part A, your programming tasks relate to the analysis of the electrical properties of the robot. When the robot is turned on, the voltage and current being used by the robot are recorded in 5 ms time intervals. This data is stored in a matrix where the first column contains time (t), the second column contains voltage (v) and the third column contains current (i). Q1 Description Create a function that accepts the data matrix as an input. The function should output an electrical power column vector and display a plot of electrical power vs. time (Note: ) .

Answer 1

%save the function as calculate_electric_power.m

function p=calculate_electric_power(matrix)
t=matrix(:,1);
%power =v*i;
p=matrix(:,2).*matrix(:,3);
plot(t,p)
xlabel('time');ylabel('Power');
end

%now execute below code from new file.m

t=0:5:100;
v=0:1:20;
i=0:2:40;
matrix=[t;v;i]';
calculate_electric_power(matrix)

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