User documentation for a completed programming application

Question

Question 1: Select appropriate pre-defined data types.

Use simple input/output and appropriate operators withthe selected data.

Use appropriate selection structures and loop structures for the given task.

Produce programs to desired standards

Write, compile and run the following two programs using C/C++ programming method. Select the appropriate defined data types to carry out the calculations:

A) Program 1:

a) Generate a list of sine and cosine values for angles from 0^o to 360^o using float (real) data types.
b) Knowing that processors deal with radians and not degrees, remember to change values from degrees to radians then convert values back to display in degrees.
c) Use looping such as for and while statement.
d) Use conditions (if statement) to avoid dividing on zero and limit the output values between e^-5 to e⁺⁵.
e) Using simple input and output statements, input program’s input data from the screen and print out the output data into the screen.

B) Program 2:

a) Generate a list of complex numbers using the following limits:

• Real values from 0 to 10 using a step of 2 (2 increment).
• Imaginary values from 0 to 10 using a step of 2 (2 increment).

b) Calculate the amplitudes and the angles in degrees

c) Using simple input and output statements, input program’s input data from the screen and print out the output data into the screen

For both programs, provide source codes, screenshots for input/output data and screenshots of running programs

Question 2: Construct a program from a design and use appropriate functions/procedures.

Demonstrate the effect of scope and life-time of variables.

Pass data effectively between modules

For the engineering problem given in this task produce the followings:

A) Construct a C/C++ program and use appropriate functions and procedures.
B) Demonstrate the effect of changing variables, constants and complex data types on the time required to run the program.
C) Program should be constructed using statements and modules within the main program. Data should be passed effectively between different parts of the main program

The engineering problem:

A series R = 100, L = 10mH and C = 10µF connected to a sinusoidal AC power supply of 100V/45O. Construct the C/C++ program to calculate the current of the circuit as a complex quantity in Polar and Cartesian forms. Produce your calculations as function of the frequency. The frequency changes from 100Hz to 2kHz using a 100Hz steps. The input of your program should be the given data and the output data must include the followings:

• Supply voltage as complex quantity
• Inductive reactance, capacitive reactance and impedance as complex quantities
• Circuit current as complex quantity
• All required quantities should be produced as function of the frequency

Formulas that equations can be used to determine the values of your variables are given in the following table:

Question 3: Produce user documentation for a completed programming application including the user interface design.

Develop technical documentation for a pre described program application

For the program developed in quetion 2:

A) Produce a complete documentation including the user interface. This must be used as user guide to show the input data required and their types, their range and a display of the source code name the user interface should also display the choice of output data and a user friendly display of the output data.
      
B) Produce a technical document that gives a clear guidance to the program user on the technical problem solved, the constants and variables being dealt with.

Question 4: Demonstrate discrimination between semantic and syntax errors.

Produce test documentation.

Successfully construct and use test data and schedules to detect logic errors.

Use appropriate techniques for detecting errors.

A) Programming errors can be classified as semantic and syntax errors. Define both types of errors and illustrate the difference between them. Produce a list of both types of errors that you faced in the program produced in question 2.
     
B) Produce a test documentation showing a procedure for the user to follow in testing the program before using it.
    
C) Change some of the variables in the developed program of question 3 to illustrate at least one logic error in the program. On compiling and running the program, illustrate the method used to detect the program errors. Explain how errors are found and how are they corrected.