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# Hoang Vu

135 2019 年以降の合計貢献数

#### Hoang Vu's バッジ

Symmetric matrix
You must create a n-by-n *symmetric* matrix such that A(row,col) = row/col for col >= row. Example if n =3 : output is : ...

3ヶ月 前

Create a Multiplication table matrix...
Create a product table in this format: P = [ 1 2 3 4 5; 2 4 6 8 10; 3 6 9 12 15; 4 8 12 1...

3ヶ月 前

"mirror" matrix
Create n x 2n "mirror" matrix of this type: Examples For n = 2 m = [ 1 2 2 1 1 2 2 1 ] For n = 3 m = ...

3ヶ月 前

Volume Pillar
Calculate the volume of a pillar with radius l and heigth ar.

3ヶ月 前

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...

3ヶ月 前

Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];

3ヶ月 前

Matrix which contains the values of an other matrix A at the given locations.
If you have two matrices, which together give xc and yc coordinates into another matrix, eg : xc = [1 1 1; 2 2 1]; ...

3ヶ月 前

matrix of natural number
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 resides seially as shown in the examples below. ...

3ヶ月 前

Calculate the derivative of a polynomial
Example: in = [ 1 1 1 ] out = [ 2 1 ]

3ヶ月 前

05 - Vector Equations 2
Define the vectors _aVec_ and _bVec_: <<http://samle.dk/STTBDP/Assignment1_2a.png>> and <<http://samle.dk/STTBDP/Assig...

3ヶ月 前

If-then-else
Complete the function below such that if the value of x is in the range 10 to 14, inclusive, the value 18 is assigned to y. Oth...

3ヶ月 前

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 ...

3ヶ月 前

Square Diagonal
If n is the given number, then make a diagonal matrix of size 2*2 with the square of that number.

3ヶ月 前

Sum of the Multiplication of Vectors
Given the vectors x and y as input, multiply the vectors and return the summation of its elements. Example: x = [1 2 ...

3ヶ月 前

04 - Scalar Equations 2
Define the variables a and b: <<http://samle.dk/STTBDP/Assignment1_4-a.png>> <<http://samle.dk/STTBDP/Assignment1_4-b.png>...

3ヶ月 前

Derivative of polynomial
Compute the derivative of a given polynomial. The input is an <http://www.mathworks.com/help/matlab/math/representing-polynomial...

3ヶ月 前

03 - Matrix Variables 3
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3c.png>> A 10x10 matrix where the numbers from 1 to 100 ...

3ヶ月 前

surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

3ヶ月 前

Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

3ヶ月 前

Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

3ヶ月 前

Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

3ヶ月 前

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.

3ヶ月 前

Calculate the centroid of a triangle
Info: https://en.wikipedia.org/wiki/Centroid Example Input: x = [0 0 1]; % x-coordinate y = [0 1 0]; % y-coordinat...

3ヶ月 前

Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

3ヶ月 前

Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

3ヶ月 前

Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

3ヶ月 前

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....

3ヶ月 前

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...

3ヶ月 前

Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

3ヶ月 前

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

3ヶ月 前