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91 total contributions since 2020

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

1 month ago

Solved

Given a and b, return the sum a+b in c.

1 month ago

How to plot every column of matrix into a different graphic but in one figure
% let us suppose your matrix is A,and you want toplot all the columns of A with espect to dome other variable. You havent mentio...

2 months ago | 1

Comparing two arrays +
clc clear all a=[10 20 30 40]; b=[20 30 30 10]; for i=1:length(a) if a(i)>=b(i) c(i)=a(i); else ...

2 months ago | 0

How can we store many matrices(z) from for loop in a single matrix D(say) in my problem.
% If you want your matrices z1,z2,z3 to be stored in side by side ie D=[z1 z2 z3] the following code helps clc clear all x=[1...

3 months ago | 1

Solved

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 months ago

Solved

Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

3 months ago

Solved

Four digit number ABCD reversal
write a MATLAB function to find the four-digit number ABCD when multiplied by 4 returns DCBA. The function takes an input x=4.

3 months ago

Problem

Four digit number ABCD reversal
write a MATLAB function to find the four-digit number ABCD when multiplied by 4 returns DCBA. The function takes an input x=4.

3 months ago | 0

Solved

Number of o rderd pairs of integers (I,J) that can be formed.
Write a MATLAB function that calculates the number of ordered pairs of integers (I, J) that can be formed satisfying the condit...

3 months ago

Solved

Ordered pairs of integers (I, J).
Write a MATLAB function that calculates the number of ordered pairs of integers (I, J) that can be formed satisfying the conditi...

3 months ago

Problem

Ordered pairs of integers (I, J).
Write a MATLAB function that calculates the number of ordered pairs of integers (I, J) that can be formed satisfying the conditi...

3 months ago | 0

Problem

Number of o rderd pairs of integers (I,J) that can be formed.
Write a MATLAB function that calculates the number of ordered pairs of integers (I, J) that can be formed satisfying the condit...

3 months ago | 0

Create a matrix with only the rows indexed by a multiple of N of another matrix.
clc clear all x1=randi([0,10],[9,2]) x2=[] for i=1:3:length(x1) x2=[x2; x1(i,:)] end % this will work

3 months ago | 1

Solved

Find the sides of an isosceles triangle when given its area and height from its base to apex
Find the sides of an isosceles triangle when given its area and the height from its base to apex. For example, with A=12 and ...

3 months ago

Solved

Height of a right-angled triangle
Given numbers a, b and c, find the height of the right angled triangle with sides a and b and hypotenuse c, for the base c. If a...

3 months ago

Solved

Find my daddy long leg (No 's')
Given the ratio of the two legs (longer / shorter), and the hypotenuse length, find the value of the bigger leg.

3 months ago

Solved

Calculate the area of a triangle between three points
Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

3 months ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

3 months ago

Fibonacci sequence with loop
clc clear all Fibonacci(1000) function fibn=Fibonacci(n) fibn=[1 1]; i=3; while fibn(i-1)<n fibn(i)=fibn(i-2)+fibn(i-...

3 months ago | 1

| accepted

Fibonacci sequence with loop
clc clear all Fibonacci(10) function fibn=Fibonacci(n) % we are defining a function Fibonacci fibn=[1 1] ...

3 months ago | 0

I need help with for loops
clc clear all A = [-100 20 50 -2 -55 3 40 -27] for i = 1:length(A) if A(i) > 0 B(i) = {'true'}; else ...

3 months ago | 0

I need help with for loops
clc clear all A = [-100 20 50 -2 -55 3 40 -27] B=zeros(1,length(A)) for i = 1:length(A) if A(i) > 0 B(i) = tru...

3 months ago | 0

How to Log10 X and Y
clc clear all x=[1 2 3 4] y=[5 7 9 9] log10(x) log10(y) this code worked well. Your question is littel bit concusing. I...

3 months ago | 1

| accepted

How can I plot 3 variables on y axis for the same variable on x axis in one plot?
you can use " hold on " command. you can write your code in the following manner. plot(x,y1) hold on plot(x,y2) hold on pl...

3 months ago | 0

Solved

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

3 months ago

Solved

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

3 months ago

Solved

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 months ago

Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

3 months ago