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Devraj Dutt


Active since 2015

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Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

ongeveer 8 jaar ago

Solved


Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

ongeveer 8 jaar ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

ongeveer 8 jaar ago

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

ongeveer 8 jaar ago

Answered
solver discrete or continuos in simscape?
ode23tb is the best solver I've used for power electronics simulations. Option 1: For point 2, also try changing each switch...

ongeveer 8 jaar ago | 0

Answered
Need advice on my code for probability simulation
Have you tried transprob (https://www.mathworks.com/help/finance/estimation-of-transition-probabilities.html).

ongeveer 8 jaar ago | 0

Question


I tried to use MATLAB to optimize lookup tables in simulations. I need help with memory overflows..
What I use is Rody Oldenhuis's GODLIKE optimization function (https://www.mathworks.com/matlabcentral/fileexchange/24838-godlike...

ongeveer 8 jaar ago | 0 answers | 0

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answers

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Genetic algorithm with non linear constraints
Hi Alan, I will experiment with the options in pattern search. I was under the impression that that one's only good for local...

bijna 9 jaar ago | 0

Question


Genetic algorithm with non linear constraints
Does the genetic algorithm ensure that all non linear constraints are satisfied before passing variables to the fitness function...

bijna 9 jaar ago | 2 answers | 0

2

answers

Submitted


Fast Finite Fourier Transform
Using MATLAB's in-built fft function, this function creates an FFT

bijna 9 jaar ago | 1 download |

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...

bijna 9 jaar 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...

bijna 9 jaar ago

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

bijna 9 jaar 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...

bijna 9 jaar ago

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

bijna 9 jaar ago

Solved


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

bijna 9 jaar 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...

bijna 9 jaar ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

bijna 9 jaar ago

Solved


Connect blocks in a model
Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

bijna 9 jaar 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]; and ...

bijna 9 jaar 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...

bijna 9 jaar ago

Solved


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

bijna 9 jaar ago

Solved


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

bijna 9 jaar 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 ...

bijna 9 jaar ago

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...

bijna 9 jaar ago

Solved


Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

bijna 9 jaar ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

bijna 9 jaar ago