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# CMPSC 201 – Fall 2015 Programming Project 2 To be done

### Customer Question

CMPSC 201 – Fall 2015 Programming Project 2 To be done individually Worth 40 points Due by 11:00 pm on 10/21 Goals: Developing problem-solving skills, declaring variables, multi-way branches, employing loops, and using files Problem: You are to create
a program to help in the analysis of data obtained from an x-ray powder diffractometer used to characterize materials. In the diffractometer a sample is exposed to x-rays of a specific wavelength and a detector placed on a goniometer is used to measure the
angles (2-theta values) where constructive interference of the diffracted beam occur (called peaks) and the intensity of these peaks. The location of these peaks is dependent on the atomic structure of the material being examined. This relationship is given
by Bragg’s law which states n = 2dsin() where n is the harmonic of the diffracted beam (n = 1 for these experiments),  is the wavelength of the x-ray, d is the interplanar spacing between planes of specific orientation in the material and  (theta) is the
angle between the x-ray beam and the sample of the material. You are to create a program that will read the 2-theta values and the intensities from a file and create a table that will contain the 2-theta values, the intensities, the d values and Q values where
Q = 1/(sin())2. The first line of the data file will contain the sample name which should be stored as a string object. The second line will contain the anode (the elemental source of the x-ray) as a 2-character symbol which should also be stored as a string
object. You will need to use this symbol to determine the wavelength of the x-ray using the table below. You should assume the format of the 2-character symbol will be an upper case letter followed by a lower case letter and the symbol will be one of those
listed in the table below. Anode Wavelength Cu 1.54059 Cr 2.28973 Fe 1.93604 Co 1.78900 Mo 0.70932 The 2-theta (first column) and intensity values (second column) will start on the third line and continue on subsequent lines. The intensity values are whole
numbers. You should design your program so it will continue to read data until the end of file is reached. Your output should be a file that contains the name of the sample, the wavelength and a table containing the 2-theta and intensity values from the file
plus the calculated d and Q values. The wavelength should be output with 6 significant digits, the 2-theta values with 5 significant digits, the d values with 6 significant digits and the Q values with 7 significant digits. The table that you output should
contain column headings then the values similar to the example given below. Your program should allow the user to enter the name of the data file, but you do not need to worry about the folder path (assume the data file is in the same folder as your *.cpp
file) and the name of the output file to be generated. A data file called “Project2data.dat” has been placed on ANGEL. This file contains different peaks than what is shown in the table below. Your program should also allow the user to analyze data from another
file without rerunning the program. For sample Project 2 demo with anode of Cu and wavelength of 1.54059 the values are 2-theta Intensity d values Q values 16.375 20 5.40889 49.30620 20.845 55 4.25800 30.55609 26.622 100 3.34567 18.86480 33.097 45 2.70443
12.32647 36.520 5 2.45842 10.18587 39.439 21 2.28293 8.783553 40.263 34 2.23809 8.441890 There were 7 peaks in the file. Would you like to analyze data from another file (y/n)? Do not use any concepts beyond Chapter 5 (e.g. do not use functions or arrays)
to complete this project. Attach your source code file and your output file to the same submission on ANGEL. Make sure that you have included your introductory comments containing the purpose of the program i.e. what problem or task is being solved plus the
input needed from user to complete the problem/task, output expected from the program, and the processing needed to get the output from the input. The description of the purpose should be detailed enough that a person reading your code would not need any additional
information to understand the problem. The processing comments should not include any C++ commands. Remember to confirm all your submissions to ANGEL. You may make multiple submissions to the same drop box and the last submission will be graded.
Submitted: 1 year ago.
Category: Homework
Expert:  active1065 replied 1 year ago.

Hi,

When do you need this by?

Customer: replied 1 year ago.
Oct 20
Expert:  active1065 replied 1 year ago.

Ok. I will have it ready by then.

Expert:  active1065 replied 1 year ago.

Hi,