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# alexander

### Carleton university

23 2011 이후 총 참여 횟수

#### alexander's 배지

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제출됨

Prime numbers
Prime number search

약 3년 전 | 다운로드 수: 1 |

해결됨

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. Examp...

약 3년 전

해결됨

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.

약 3년 전

해결됨

Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

약 3년 전

해결됨

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...

약 3년 전

해결됨

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...

약 3년 전

해결됨

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

약 3년 전

해결됨

So many choices
For inputs _n_ and _k_ (in that order), output the number of ways that k objects can be chosen from amongst n distinct objects. ...

약 3년 전

해결됨

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...

약 3년 전

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

약 3년 전

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Is my wife right?
Regardless of input, output the string 'yes'.

약 3년 전

해결됨

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

약 3년 전

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

약 3년 전

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

약 3년 전

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Given a and b, return the sum a+b in c.

약 3년 전

해결됨

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

약 3년 전

질문

Referencing specific dimensions of an array
Hello, I have a rectangular matrix and I am trying to determine if values in each row are equal. I built a function that wil...

약 5년 전 | 답변 수: 1 | 0

### 1

답변

질문

Appending to text files
Hello, this is a fairly simple problem and i have come up with a simple enough solution. I need to append alot of text files to ...

약 8년 전 | 답변 수: 1 | 0

### 1

답변

해결됨

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

약 8년 전

해결됨

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

약 8년 전

질문

UNIX bash shell in an m file?
Hello, I need to invoke a bash file from matlab which is easy enough to do. However i would like instead to write the bash co...

약 8년 전 | 답변 수: 2 | 0

### 2

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질문

Hello I am working on a project where i need to periodically download weather forecasts from a server. I have been experiment...

약 8년 전 | 답변 수: 1 | 0

### 1

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질문

Matching a data set
Hello I am working to modify weather data. I have sparse weather forecast data that is inadequate for energy simulation purpo...

8년 이상 전 | 답변 수: 1 | 0

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