1,518 Answered Questions for the topic computer science

Computer Science Computer Programming Python

01/29/15

Nested Functions
Hi, I know the general idea behind nested functions, and how one function can call another inside it. But this example, from Python, confuses me a bit. One function totalPct, is called using a... more
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Computer Science

12/08/14

automata question
Minimize the function E(x) = X4- 3 x3-15x -4 =0,using simulated annealing method. Take an initial random guess x1 between 0 and 10. Set the value of Temperature T= 100. Calculate E(x1). Choose... more
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12/02/14

java program a mp3 catalogue
Hi! i am new to programming and especially to Java. I have been given a task o complete which is to program a mp3 catalogue. An example could be like itunes where the songs are listed and could be... more
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Computer Science

11/20/14

Computer Science
How do i print elements in an array backwards?
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Computer Science Java Programming Javascript

11/14/14

How to I change a switch operation on a string to work in eclipse 1.6?
This is the code I have:   public static double monthly(String month) { switch (month) { case "01": return .5; case "07": return .5; default: return 1; } }   However, eclipse does't allow... more
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Computer Science Unix

11/13/14

What is the difference between the zsh shell and the bash shell?
What is the difference between the zsh shell and the bash shell? What is so interesting about the zsh shell?  
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Computer Science Math Discrete Math

11/09/14

Find the smallest number k such that s(n) = O(n^k). (Big Oh)
Find the smallest number k such that s(n) = O(n^k). (Big Oh)   s(n) = sqrt(n^2-1)
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11/09/14

How to calculate the CPU Efficiency for FCFS, SJF, Priority and RR?
I am working on CPU Scheduling and I have to calculate the CPU efficiency for each algorithm i.e. First Come Fist Serve, Shortest Job First, Priority and Round Robin. How can I do this?
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Computer Science Functions Discrete Mathematics

10/21/14

Is the function injective or surjective?
Determine whether the function f: NxN --> Z with f(x,y) = (1-x^2)[y/3] is either:   a) injective b) surjective       Injective function A function f is said to be one-to-one, or... more
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10/21/14

Show that the function f: N * N - > N * N, f(x,y) = (x+y, 2x-3y) is one-to-one.
Show that the function f: N x N - > N x N, f(x,y) = (x+y, 2x-3y) is one-to-one.(A function f is said to be one -to -one , or injective , if and only if f ( a) = f ( b ) implies that a = b for... more
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Computer Science Extreme Point

10/12/14

Find extreme values!
y = 2/(x-2)^2 - (x). Find extreme values for this function (if there are any) and draw the function.
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Computer Science Computer Programming Complexity

09/20/14

big O complexity
for(int i = 0; i < 1; i++)for(int j = 0; j < 1; j++)a = i;what is the big O of this fragment code.i said it will be O(n2), but my teacher said it is O(n)for(int i = 0; i < n*n; i++)for(int... more
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06/04/14

What would be five different states through which ports on a switch running STP can transition.
Sorry for the many questions, only asking cause like I said in my previous question my knowledge is little in the networking field and any help would be much appreciated. How do you bypass the... more
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Computer Science

05/18/14

Write an assembly program that loads two numbers from memory, calculates their sum, and stores the sum to the memory.
Write an assembly program that loads two numbers from memory, calculates their sum, and stores the sum to the memory.
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Computer Science Java Computer Programming

04/25/14

why would this show this error? and an example on how to fix it? i keep getting five of them
expectedprice = Integer.parseInt (inputprice);   expected }   cannot resolve synbol symbol ; method parseInt location : class homeloan moths = parseInt (Input Months)   possible loss of... more
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02/23/14

verify and explain
Let a = 67, b = 30, and n = 7 Verify and explain that (a-n)≡(mod b)
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Computer Science Computer Programming

02/03/14

Need help in a software engineering question
You have called into a software company as an independent consultant .In recent months, the quality of the software being sold has taken a distinct drop. You have been asked to identify ways in... more
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Computer Science

11/07/13

what problem would arise if two real time operating systems are made to be hosted atop a hypervisor resident atop a quad core processor based computing system
what problem would arise if two real time operating systems are made to be hosted atop a hypervisor resident atop a quad core processor based computing system
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