Online TA Profiles
Yupei Xiong, PhD
OTA ID#: 101298
| Education Experience: |
BSc, Mathematics, Peking University, 1996 MA, Mathematics, Peking University, 1999 PhD, Mathematics, University of Maryland - College Park Campus, 2004 |
|---|---|
| Focus of Study: | Applied Mathematics and Computer Science | Outside Interests: | Software |
| Postings Answered: | 3921 |
| Cumulative OTA Rating: | 4.8/5 What is OTA Rating? |
- Java: How to Program - Modify the Inventory Program so the application can handle multiple items. Use an array to store the items. The output should display the information one product at a time, including the item number, ...
- In the Diffie-Helman protocol, g=7, p=23, x=3, and y=5. What is the value of the symmetric key? - (HW1) List some of the attacks on the Diffie-Hellman key exchange protocol we discussed in the lecture. Present your solution for avoiding such attacks. (HW2a) In the Diffie-Helman protocol, ...
- Logarithmic scale and sound - The loudness of sound is based on intensity level measured in decibels using a logarithmic scale and is relative to ( a ratio of) the weakest sound the ear can hear. A. The formula for measuring s ...
- Index of a Series, Functions, Arithmetic and Geomteric Sequences - Using the index of a series as the domain and the value of the series as the range, is a series a function? Include the following in your answer: Which one of the basic functions (linear, quad ...
- Java: How to Program - Modify the Inventory Program by adding a button to the GUI that allows the user to move to the first item, the previous item, the next item, and the last item in the inventory. If the first item is di ...
- The mean starting salary for college graduates in the spring of 2004 was $36,280... - The mean starting salary for college graduates in the spring of 2004 was $36,280. Assume that the distribution of starting salaries follows the normal distribution with a standard deviation of $3,300. ...
- Sampling methods and central limit theorem - The mean score of a college entrance test is 500, the standard deviation is 75 and the scores are normally distributed. (a) What percent of the students scored below 320? (b) What percent of ...
- Assume that Alice shares a secret s with her company's server computer. - Assume that Alice shares a secret s with her company's server computer. When Alice is on a trip, she tries to store an important message in the CEO's account directory. This message needn't be encrypt ...
- Creating a Java Inventory Program - I have been collecting golf balls from different courses over the years now. Of right now I have an inventory of over 200 golf balls from different courses. Each golf ball has its own logo (golf cours ...
- Probability - National Park Service - A study by the National Park Service revealed that 50% of vacationers going to the Rocky Mountain region visit Yellowstone Park, 40% visit the Tetons, and 35% visit both. A. What is the probability ...
- Huge Integer Class - Java - Create a class HugeInteger which uses a 40-element array of digits to store integers as large as 40 digits each. Provide methods input, output, add and subtract. For comparing HugeInteger objects, pro ...
- 23 Polynomials Problems : Solving for Roots, Asymptotes, Word Problems, Finding Equations from Roots, Synthetic Division and Function Composition - 1. The figure shows the graphs of f(x) = X 3 and g(x) =AX 3.What can you conclude about the value of a? 2. If f(x)= x(x+3)(x-1), use interval notation to give all values of x where f(x)>0. 3. If ...
- Media Selection - 18. An ad campaign for a new snack chip will be conducted in a limited geographical area and can use TV time, radio time, and newspaper ads. Information about each medium is shown below. Medium ...
- Multiple choice questions - I just want to make sure they are correct. If I am wrong please explain why. Sensitivity analysis information in computer output is based on the assumption of no coefficient change one coefficie ...
- Design a program that models the worm's behavior in the following scenario - • Resource: Ch. 4 in Extended Prelude to Programming: Concepts and Design (2nd ed.) • Design a program that models the worm's behavior in the following scenario: A worm is moving toward an apple ...
- Programing in Java - Fahrenheit to Celsius - I have to write a Java program that converts Fahrenheit to Celsius. The formula is: celsius = (5 / 9) * (fahrenheit - 32) The program read a Fahrenheit degree in double from the input dialog box the ...
- Solve the following system of simultaneous equations - 1. Solve the following system of simultaneous equations: 6x1 + 4x2 = 40 2x1 + 3x2 = 20 x1 = ??? put your answer in the form x or x.x (Points: 1) 2. Max Z = 5x1 + 3x2 Subject ...
- Expected Value - Myers Business Systems is evaluating the introduction of a new product. The possible levels of unit sales and the probabilities of their occurrence are given below: Possible Sales Market Reaction ...
- Geometric Mean Annual increase for a Period - In 1996 a total of 14,968,000 taxpayers in the United States filed their individual tax returns electronically. By the year 2002 the number increased to 46,282,200. What is the geometric mean annual i ...
- Logarithmic Functions - The formula for calculating the amount of money returned for an initial deposit money into a bank account or CD (Certificate of Deposit) is given by A is the amount of returned. P is the principa ...
