The roots of a cubic equation can be calculated using the following
procedure: Set: , , and . Calculate: , where and . If the equation has complex
roots. If all roots are real and at least two are equal. The roots are given by: ,,
and . If all roots are real and are given by: , , and , where . Write a MATLAB
program that determines the real roots of a cubic equation. As input the
program asks the user to enter the values of a3, a2, a1, and a0 as a vector.
The program then calculates the value of D. If the equations have complex
roots, the message "The equation has complex roots" is displayed.
Otherwise the real roots are calculated and displayed. Use the program to solve the following equations:
a) 5x^3 + -34.5x^2 + 36.9x + 8.8 = 0
b) 2x^3 + -10x^2 + 24x -15 = 0
c) 2x^3 + -1.4x^2 - 20.59x - 30.87 = 0

Write a computer program to calculate the three-phase fault current for a fault at f in figure 1.16, with the network normal, and with one line at a time removedproblems 1.1 write a computer program to calculate the three-phase fault current for a fault at f in figure 1.16, with the network normal, and with one line at a time removed 20 power system relaying from service. the positive-sequence impedance data are given in the accompanying table. use the commonly made assumption that all prefault resistance values are (1.0+j0.0) pu, and neglect all resistance values. calculate the contribution to the fault flowing through the cb b and the voltage at that bus. for each calculated case, consider the two possibilities: cb b2 closed or open. the latter is known as the stub-end fault í• figure 1.16 problem 1.1 system data for figure 1.16 from to positive sequence 0.0+j0.1 0.05j0.15 0.04 j0.2 0.01 jo. i 0.015 + j0.15 0.01 j0.19 0.01 +j0.19 0.03+j0.1 0.0+j0.08 6 6 6 from service. the positive-sequence impedance data are given in the accompanying table. use the commonly made assumption that all prefault resistance values are (1.0 + j 0.0) pu, and neglect all resistance values. calculate the contribution to the fault flowing through the cb b1, and the voltage at that bus. for each calculated case, consider the two possibilities: cb b2 closed or open. the latter is known as the “stub-end” fault.

Hyperactive media sales has 10 windows 7 laptop computers used by sales-people in the organization. each laptop computer has several customized applications that are used during the sales process as well as customer relationship management software. all of the applications on the laptops are difficult to configure and have large data files. if all of the laptops have current hardware, what is the easiest way to install windows 10 on them?

What is a point-in-time measurement of system performance?