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VBBV


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399 total contributions since 2017

Programming in MATLAB applied to interdisciplinary engineering fields

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Answered
Nested for loop Please help!
clear n = 10; x = 1; xx = zeros(10,10); for i = 1:n xx(i,:) = x+1:n+x; x = x+1; end xx >> xx = 2 ...

3 hours ago | 0

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.

17 hours ago

Solved


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.

17 hours ago

Solved


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...

17 hours ago

Answered
How to draw line graph with same values in this bar graph?
clear x = [1 2 3 4 5 6 7]; temp_high = [149.1350 143.9020 19.1230 19.0350 11.8150 19.8610 11.6600]; w1 = 0.5; bar(x,temp_h...

18 hours ago | 0

| accepted

Solved


Solve a System of Linear Equations
*Example*: If a system of linear equations in _x&#8321_ and _x&#8322_ is: 2 _x₁_ + _x₂_ = 2 _x₁...

19 hours ago

Solved


Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

19 hours ago

Solved


Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

20 hours ago

Solved


Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

21 hours ago

Solved


Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

21 hours ago

Answered
How to create a row vector upto a particular distance with the help of a variable?
B(((n-1)/3+1):(2*(n-1)/3)) = 8 ^ You have missing parenthesis

23 hours ago | 0

Answered
Undefined function or variable
You said another file of same format, probably the filename is different and doesnt exist in working folder

23 hours ago | 0

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...

24 hours ago

Solved


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....

24 hours ago

Answered
Error in 1st line of code
dx=zeros(2,1); there is no zeroes

24 hours ago | 0

Solved


Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

1 day ago

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...

1 day ago

Solved


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]

1 day ago

Solved


Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...

1 day 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...

1 day ago

Solved


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

1 day ago

Solved


Return area of square
Side of square=input=a Area=output=b

1 day ago

Solved


Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

1 day ago

Solved


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...

1 day ago

Solved


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 day ago

Answered
Where am I going wrong in setting up this function?
X(l) = symsum( x(k)* exp(-(1i)*l*k*w), k, 0, N-1 ); use exp function

1 day ago | 0

| accepted

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

1 day ago

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

1 day ago

Answered
I keep getting "Array indices must be positive integers or logical values."
%true clearvars;clc x = .993 : 0.01 : 1.283; f = 7*x.^3 - 2*x.^2 + 7*x - 14; g = -19*x.^3 + 3*x.^2 + 16*x + 8; p...

1 day ago | 0

Answered
Using Help using filter function in Matlab
%true xi = HPFnew.*sin((omega.*t+phase)*pi/180) u = uhat +A*sin((omega*t+phase)*pi/180) Try the above. Also see the fi...

1 day ago | 0

| accepted

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