Gurudatha Pai
University of Wyoming
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http://uwstudents.uwyo.edu/gpai
Professional Interests: signal processing, system identification, power system stability studies
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Question
Why does Microsoft Outlook not like MATLAB's .MAT files?
Hello All, This is not a MATLAB question but I would really appreciate any comments. In my experience, outlook blocks .mat...
mer än 11 år ago | 4 answers | 3
4
answersHow to plot common zero crossings of 3 different signals (3 sinusoidal signals)?
This may sub-optimal but definitely a start. I would find the zero crossings of each as a vector of 1's and 0's and add them. Th...
mer än 11 år ago | 0
| accepted
Question
Matlab's Strange Behavior
>> fprintf('%4d, %1.6f, %1.6f\n',1, 1.1, 1.2) 1, 1.100000, 1.200000 >> disp(fprintf('%4d, %1.6f, %1.6f\n',1, 1.1, 1.2)...
mer än 11 år ago | 1 answer | 0
1
answerSolved
Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...
nästan 12 år ago
Solved
How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...
nästan 12 år ago
Solved
Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.
nästan 12 år ago
Solved
Find common elements in matrix rows
Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...
nästan 12 år ago
Solved
Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...
nästan 12 år ago
Solved
Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...
nästan 12 år ago
How to determine the order of ARMA and AR coefficient ?
Model order selection is often a tricky business. Inspecting the Hankel singular values is one many methods. There are many such...
nästan 12 år ago | 0
Question
Is there a faster way to implement a FIFO (queue) ?
Hi, I was wondering if somebody could comment on my use of array indexing. I have a recursive function which uses some initial c...
ungefär 12 år ago | 1 answer | 0
1
answerQuestion
Help understanding an error
Hello all, I am in a simple situation with an error that doesn't tell you a whole lot. I have a plot that I want to save as a...
nästan 13 år ago | 2 answers | 0
2
answersSolved
The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".
nästan 13 år ago
Solved
Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...
nästan 13 år ago
Solved
Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...
nästan 13 år ago
Solved
Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...
nästan 13 år ago
Solved
Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
nästan 13 år ago
Solved
Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...
nästan 13 år ago
Solved
Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...
nästan 13 år ago
Solved
Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...
nästan 13 år ago
Solved
Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...
nästan 13 år ago
Solved
Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...
nästan 13 år ago
Solved
Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...
nästan 13 år ago
Solved
Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...
nästan 13 år ago
Solved
Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...
nästan 13 år ago
Solved
Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...
nästan 13 år ago
Question
What are the rules for naming script files?
Hello, This is perhaps one of those "I-know-the-answer-still-I-ask" questions. Today, I had a strange error in one of my scri...
nästan 13 år ago | 2 answers | 1
2
answers[DEPRECATED] What frustrates you about MATLAB?
I dont know if somebody has posted this already but I would like to mention that the auto-fill feature frustrates me a lot. I ca...
nästan 13 år ago | 0