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# Emily Alexander

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82 total contributions since 2020

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Product of Array
Given an array of numbers. Get the product of the array.

1 day ago

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Find the area of a triangle
Given a triangle with a base b and height h, return the triangle area.

1 day ago

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Area of a triangle
A triangle is given with base *'b'* ,vertical hight *'h'* . then find it's area.

1 day ago

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Rotate array 90 degrees
Rotate the given matrix by 90 degrees. Example, A = [1 2 3 ; 4 5 6 ] B = rotated(A) = [ 3 6; 2 5; 1 4 ]

1 day ago

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Vector Multiplication
Vector Multiplication of three matrix as shown in test cases.

1 day ago

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Square the input
Given a scalar or vector x, return the square of each element. Example x = [7 2] answer = [49 4]

1 day ago

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Element by element multiplication of two vectors
Given two input vectors, return the element-by-element product. Example A = [1 2 3] B = [7 3 1] The answer should be...

1 day ago

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Roots
Find out the roots of a given polynomial equation.Given are the coefficients of the equation.

1 day ago

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Find out sum of all elements of given Matrix
Find out sum of all elements of given Matrix A=[1 2 3;4 5 6 ;7 8 9]; Answer must be: 45 *If you like this problem, pl...

1 day ago

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What is Sum Of all elements of Matrix
Given the matrix x, return the sum of all elements of matrix. Example: Input x = [ 1 2 0 0 0 0 6 9 3 3 ] ...

1 day ago

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Max of a Vector
Write a function to return the max of a vector

1 day ago

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Determine the square root
Determine the square root of the value the user has entered, n.

1 day ago

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Sum of Two Numbers
Given two integer numbers x and y, calculate their sum and put it in z. Examples: Inputs x = 2, y = 4 Output z is 6 ...

1 day ago

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Beginner's Problem - Squaring
Try out this test problem first. Given the variable x as your input, square it by two and put the result in y. Examples: ...

1 day 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.

1 day ago

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Multiply a column by a row
* Given a column vector C and and a row vector R. * Output a matrix M. * Every column of M equals to C multiplied by correspon...

1 day ago

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Rotate a Matrix
Input a Matrix x, Output y is the matrix rotating x 90 degrees clockwise

1 day ago

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Create a two dimensional zero matrix
You have to create a zero matrix of size (mxn) whose inputs are m and n and the elements of your matrix should be zeros. Exam...

1 day ago

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Product of elements in row
Product of matrix such that a=[3 3 1] b=9

1 day ago

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square root
Find the square root (y) of an input (x).

1 day 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

1 day ago

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Transpose
Write a MATLAB script in order to convert a random length row vector (v) into a column vector.

1 day ago

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Matlab Basics - Convert a row vector to a column vector
Write a script to convert a row (e.g. x = [1 2 3]) to a column (e.g. y = [1;2;3]), your script should be able to do this for any...

1 day ago

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Calculate the sum of two numbers. Example input = [2 3] output = 5

1 day ago

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Square a Number
Given an input x, return y, which is equal to the square of x.

1 day ago

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Create a Matrix of Zeros
Given an input x, create a square matrix y of zeros with x rows and x columns.

1 day ago

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Sum of the Matrix Elements
Add up all the elements in a NxM matrix where N signifies the number of the rows and M signifies the number of the columns. E...

1 day 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 ...

1 day ago

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Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

1 day ago

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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...

1 day ago