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# CXD

### TJU

Last seen: Today Active since 2022

sqrt6661661161

Spoken Languages:
English
Professional Interests:
Mathematics and Optimization

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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.

18 jours ago

Solved

04 - Scalar Equations 1
Define the variable a: <<http://samle.dk/STTBDP/Assignment1_4-a.png>> Use this to calculate x: <<http://samle.dk/STTBD...

18 jours ago

Solved

Matlab Basics II - Log and natural log
Write a function that calculates the difference between the log and natural log of a vector, to two decimal places example: ...

18 jours ago

Solved

Change the first and last diagonal element of the identity matrix to zero
Starting with the identity matrix, change first and last diagonal element to zero. Example If n=5 A = 0 0 ...

18 jours ago

Solved

Sum of digits of powers of 2
Given n, first, calculate the number 2^n. Then, sum the digits that comprise that number. For example: Input: n = 7 2^n = ...

18 jours ago

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Perimeter
Given a sequence of points forming a closed path (first and last points are coincident) return the perimeter value. For example...

21 jours ago

Solved

Vectors counting by 2
Create a vector numbers from 7 to 15 in increments of 2

21 jours ago

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03 - Matrix Variables 5
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3e.png>>

21 jours ago

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

26 jours ago

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Matrix of almost all zeros, except for main diagonal
Write a program to input an integer n and build a n-by-n matrix with the numbers 1,2,...,n on the main diagonal and zeros elsewh...

26 jours ago

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Change matrix to vector
Vector is a matrix whose size is 1 x n or n x 1. Change matrix to vector. x = 4 3 5 1 ...

26 jours ago

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Solve equation numerically
y'=y In order to solve equation using computer, numerical analysis are needed. 1st order Euler's method is one of the metho...

26 jours ago

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Calculate some equation
Using given inputs x and z, make two outputs that are y1 = (xz)/(x/z)^2 + 14x^2 - 0.8z^2 y2 = x^z - z^x + (x/z)^2 - (z/x...

26 jours ago

Solved

Skip by a multiple
Given an integer create an array of its multiples. Array must have a length of 15

26 jours ago

Solved

Convert yards to feet
The goal of this script is to convert a value given in yards to feet.

26 jours ago

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Negative Infinity
Round the given array a towards negative infinity.

26 jours ago

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What percentage?
Calculate the output c as the percentage of a on b for given a and b.

26 jours ago

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Set defaults
Write a function that computes the volume of a cube. The function should be able to accept three inputs: the length, width, and...

26 jours ago

Solved

Change the sign
Given a matrix x, return one with each diagonal element replaced by its absolute value and the largest element in absolute value...

26 jours ago

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Basic arrays operations.
Apply element-by-element binary operation 'fun' to two arrays (A and B).

26 jours ago

Solved

create a circulant matrix
create a circulant matrix

26 jours ago

Solved

Looking for Squares
Need n squares that equal one square all together, none zero, none fractured. For example, calling squares(2) should output [16...

26 jours ago

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commutative?
Given the handle to a binary function that takes two ordinary numbers, test if the function is commutative.

26 jours ago

Solved

N-Cards Problem
You have a deck of _N_ cards numbered in order from 1 to _N_. You discard the top card (card 1) and place the next card (card 2)...

26 jours ago

Solved

Make a 1 hot vector
Make a vector of length _N_ that consists of all zeros except at index _k_, where it has the value 1. Example: Input ...

26 jours ago

Solved

Finding perimeter of a rectangle
A rectangle has a length of x centimeters and a width of w centimeters. Find the perimeter.

26 jours ago

Solved

y equals x divided by 2
function y = x/2

26 jours ago

Solved

find the surface area of a cube
given cube side length x, find the surface area of the cube, set it equal to y

26 jours ago

Solved

Add a row of zeros on top of a matrix
Given a matrix, insert a row of zeros as the top row.

26 jours ago

Solved

Generate a string like abbcccddddeeeee
This is the string version of Problem 1035. <http://www.mathworks.com/matlabcentral/cody/problems/1035-generate-a-vector-like-1-...

26 jours ago