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Solved
Back to basics 6 - Column Vector
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...
bijna 10 jaar ago
Solved
Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.
bijna 10 jaar ago
Solved
All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0
bijna 10 jaar ago
Solved
Reverse the elements of an array
Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...
meer dan 10 jaar ago
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Determine Whether an array is empty
Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.
meer dan 10 jaar ago
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Who knows the last digit of pi?
There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...
meer dan 10 jaar ago
Solved
Find the largest value in the 3D matrix
Given a 3D matrix, A, find the largest value. E.g. >> A = 1:9; >> A=reshape(A,[3 1 3]); >> islargest(A) ans = 9
meer dan 10 jaar ago
Solved
Convert a vector into a number
This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...
meer dan 10 jaar ago
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Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....
meer dan 10 jaar ago
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Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...
meer dan 10 jaar ago
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Make one big string out of two smaller strings
If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...
meer dan 10 jaar ago
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Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...
meer dan 10 jaar ago
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The Answer to Life, the Universe, and Everything
A variation of a previous Hitchhiker's Guide to the Galaxy problem. *Inputs:* Life, the Universe, and Everything *Output:*...
meer dan 10 jaar ago
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Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.
meer dan 10 jaar ago
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Rotate a Matrix
Input a Matrix x, Output y is the matrix rotating x 90 degrees clockwise
meer dan 10 jaar ago
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Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];
meer dan 10 jaar ago
Solved
Number of Horns on a unicorn!
Calculate the number of horns on a *unicorn*! And I'm talking about a unicorn with not more than one horn on it!
meer dan 10 jaar ago
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Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...
meer dan 10 jaar ago
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First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];
meer dan 10 jaar ago
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Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...
meer dan 10 jaar ago
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Back to basics 11 - Max Integer
Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive integer MATLAB can handle.
meer dan 10 jaar ago
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Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...
meer dan 10 jaar ago
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Back to basics 8 - Matrix Diagonals
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...
meer dan 10 jaar ago
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Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product
meer dan 10 jaar ago
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Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12
meer dan 10 jaar ago
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Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1
meer dan 10 jaar ago
Solved
Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...
meer dan 10 jaar ago