fuqing yuan
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Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...
más de 8 años hace
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The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...
más de 8 años hace
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All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0
más de 8 años hace
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Josephus Survivor
The <http://en.wikipedia.org/wiki/Josephus_problem Josephus Challenge> is to find the position that is the last remaining when e...
más de 8 años hace
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What is the distance from point P(x,y) to the line Ax + By + C = 0?
Given a point, P(x,y), find the distance from this point to a linear line. INPUTS: x, y, A, B, C OUTPUTS: d, the distance ...
más de 8 años hace
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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...
más de 8 años hace
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Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...
alrededor de 9 años hace
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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...
alrededor de 9 años hace
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Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...
alrededor de 9 años hace
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Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...
alrededor de 9 años hace
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Big numbers, repeated least significant digits
This problem builds off of <http://www.mathworks.com/matlabcentral/cody/problems/3077-big-numbers-least-significant-digits/ Prob...
alrededor de 9 años hace
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Create a row array using double colon operator
Create a row array from 9 to 1, using the double colon operator.
alrededor de 9 años hace
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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...
alrededor de 9 años hace
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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".
alrededor de 9 años hace
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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0
alrededor de 9 años hace
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Path Optimization thru N words : Time Optimization
This is an extension of <http://www.mathworks.com/matlabcentral/cody/problems/196-love-is-an-n-letter-word Cody 196 love> with ...
alrededor de 9 años hace
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Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.
alrededor de 9 años hace
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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]
alrededor de 9 años hace
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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.
alrededor de 9 años hace
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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 + ...
alrededor de 9 años hace
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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
alrededor de 9 años hace
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summation of the reciprocals
Determine the summation of the reciprocals of numbers with length equal to N,in the meanwhile there is a digit K excluded from t...
alrededor de 9 años hace
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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...
alrededor de 9 años hace
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Counting Sequence
Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...
alrededor de 9 años hace
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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...
alrededor de 9 años hace
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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...
alrededor de 9 años hace
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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...
alrededor de 9 años hace
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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...
alrededor de 9 años hace
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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...
alrededor de 9 años hace
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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...
alrededor de 9 años hace