Gelöst

Sum of series V
What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?

11 Monate vor

Gelöst

Sum of series IV
What is the sum of the following sequence: Σ(-1)^(k+1) (2k-1)^2 for k=1...n for different n?

11 Monate vor

Gelöst

Sum of series III
What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?

11 Monate vor

Gelöst

Sum of series II
What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?

11 Monate vor

Gelöst

Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

11 Monate vor

Gelöst

Is A the inverse of B?
Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...

11 Monate vor

Gelöst

Rotate Matrix @180 degree
Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

11 Monate vor

Gelöst

Converts numbers into characters
Converts numbers into characters

11 Monate vor

Gelöst

Square root
Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

11 Monate vor

Gelöst

Calculate the average value of the elements in the array
Calculate the average value of the elements in the array

11 Monate vor

Gelöst

to the 2 all elements
to the 2 all elements

11 Monate vor

Gelöst

the average value of the elements
Calculate the average value of the elements in the array

11 Monate vor

Gelöst

Double all elements in the array
Duplicate all elements in the array

11 Monate vor

Gelöst

calculate the length of matrix
input 1 array, calculate the length

11 Monate vor

Gelöst

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...

11 Monate vor

Gelöst

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

11 Monate vor

Gelöst

Write a function man that takes a row vector v and returns a matrix H as follows..
Write a function called man that takes a row vector v as an input and returns a matrix H whose first column consist of the eleme...

11 Monate vor

Gelöst

Find the maximum number of decimal places in a set of numbers
Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not count...

11 Monate vor

Gelöst

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 ...

11 Monate vor

Gelöst

Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

11 Monate vor

Gelöst

Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2 3 3 3 4...

11 Monate vor

Gelöst

frame of the matrix
Given the matrix M, return M without the external frame.

11 Monate vor

Gelöst

Find Logic 18

11 Monate vor

Gelöst

Find Logic 19

11 Monate vor

Gelöst

Natural numbers in string form
Create a cell array of strings containing the first n natural numbers. Slightly harder than it seems like it should be. Exampl...

11 Monate vor

Gelöst

Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<https://i.imgur.com/jlZDHhq.png>> Image courtesy of <http://up...

11 Monate vor

Gelöst

Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<https://imgur...

11 Monate vor

Gelöst

Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

11 Monate vor

Gelöst

Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return true if the triangle with sides a, b and c is right-...

11 Monate vor

Gelöst

Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<https://imgur.com/x6hT6mm.png>> ...

11 Monate vor