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Step up
For given input array, output a array with all elements step up by two

3 years ago

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Reverse within string
If input is a string 'yellow' the output should be 'leywol'. Locate the middle of the string and reverse the first (yel) and sec...

3 years ago

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Solve expression I
Solve expression (1+sin(x))/cos(x)+cos(x)/(1+sin(x)) for given vector x.

3 years ago

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Calculate sin(x) without sin(x)
Calculate y = sin(x) x = 0 -> y= 0 without the use of sin(x) or cos(x)

3 years ago

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Weighted average
Compute the weighted average Y, of the vector A, given the weight vector W. The weighted average is the sum of the dot produc...

3 years ago

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Find Logic 32

3 years ago

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Remove the middle element from a vector
Remove the middle element of a vector? *Example:* [1,2,3] should return 2 [1,2,3,4] should return 2 [] should return...

3 years ago

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Problem 44444 !!! free beer everyone
just say hallelujah to solve this problem

3 years ago

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Calculate inverse matrix in m by n matrix
x=(1:10)' y=roundn(2*x+7*rand(size(x)),-1) a*x=y Estimate a using inverse matrix calculation. This is principle of li...

3 years ago

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Make an identity matrix whose diagonal elements are 1:n
For a given input n, make an n by n identity matrix that contains the elements 1:n along its diagonal. For example, if input=5: ...

3 years ago

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Add the positive numbers
Add only the positive numbers of x example: x = [-2 -1 0 1 2 3] the positive numbers are: 1 2 3, so their sum is 6

3 years ago

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Add the even numbers
Add only the even numbers of x example: x = [1 2 3 4 5] the positive numbers are: 2 4, so their sum is 6

3 years ago

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Hydrogens in a Saturated Hydrocarbon
Given (c) carbon atoms in a saturated hydrocarbon molecule (all single bonds), how many hydrogen atoms (h) are in the molecule?

3 years ago

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COUNT VOWEL 2
The objective of this problem is to determine the number of unique vowels used in the given string. Now count vowels in STRI...

3 years ago

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Sum of logarithms
Given a vector, v, of real positive numbers, compute the sum, s, of the base-10 logarithms of the elements of v, without the use...

3 years ago

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Pluralization
Define function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise. This is handy for displaying messages from a...

3 years ago

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Compare two strings.
Compare two strings, whether they are equal or not.

3 years ago

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determine if
determine if the elements of a matrix is a nan and return true

3 years ago

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Find the elements of a matrix according to a defined property.
From A = [5,2,3] and B = [1,2,3,4,5,6,7,8,9,10] produce a vector C where : C(1) is the sum of the first A(1) elements of B, ...

3 years ago

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What's the missing interior angle?
I'm talking about polygons... The sum of the interior angles of a triangle is 180 degrees. The sum of the interior angles of a...

3 years ago

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Solving Quadratic Equations (Version 2)
Before attempting this problem, solve version 1: <https://www.mathworks.com/matlabcentral/cody/problems/2510-solving-quadratic-...

3 years ago

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Find difference of two set as per example
Find difference of two set as per example Say x=[1:5] and y=[2:6] then, set_diff(x,y) should give output[1] and set_diff(y...

3 years ago

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Create an m x n array consisting only of an input value.
Create an array with m rows and n columns wherein all entries are assigned the input value x.

3 years ago

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Consecutive Powers
Return 2 numbers and 2 powers such that their difference is 1 A 4 element row vector is expected: x where x(1)^x(2) - x(...

3 years ago

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Delete x value in given vector y.
Delete x value in given vector y. Exapmle x=5; y=[ 1 2 5 6 74 5 2 5] result=[1 2 6 74 2]

3 years ago

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Shift elements of vector left
Shift elements of vector to the left. For ex. : Input_vec = [1 2 3 4 5] Output_vec = [2 3 4 5 1]

3 years ago

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Average of corner elements of a matrix (★★)
(copy of prob 2235) Calculate the average of corner elements of a matrix. e.g. x=[1 2 3; 4 5 6; 7 8 9;] avg = (1+3+7+9)...

3 years ago

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Save variables
a=[1] Save variable a that is located in workspace into current folder. File name should be 'a.mat'

3 years ago

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World Cup 2018 Prediction!
Which team will be the winner?

3 years ago

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Sum of elements of a vector (★★★)
Given any vector x = [x1, x2, x3, ... xn], compute the sum of its elements. Thus, if x = [ 1 3 -2 5 ], then the sum of its el...

3 years ago