Preallocating a vector, MATLAB in Engineering

Assignment Help:

Preallocating a Vector:

There are necessarily two programming techniques that can be used to simulate the cumsum function. One technique is to begin with an empty vector and concatenate each running sum value to the vector. Extending a vector, though, is very ineffective. A better technique is to preallocate the vector to the right size and then change the value of each element to be succeeding running sums. Both techniques will be shown here.

In the function below, the output argument is initialized to the empty vector []. Then, every time the later element in the vector is added to the running sum, this latest sum is appended to the vector.

1788_Preallocating a Vector.png


Related Discussions:- Preallocating a vector

Distributed computing on linux cluster, i want to run 4 instances of my mat...

i want to run 4 instances of my matlab code on 4 processor cores. im executing the job from head node. i created a parallel job and assigned number of workers. but i don''t get bac

Matrix solutions of the linear algebraic equation, Matrix solutions to syst...

Matrix solutions to systems of the linear algebraic equations: The linear algebraic equation is an equation of the form a 1 x 1 + a 2 x 2 + a 3 x 3    .  .  .  .  a n x n

Implementation of binary search, Implementation of binary search: The ...

Implementation of binary search: The binary search can be implemented as a recursive function. The recursive function below also implements this binary search algorithm. It re

Passing structures to functions, Passing Structures to Functions: The ...

Passing Structures to Functions: The whole structure can be passed to a function, or separate fields can be passed. For illustration, here are the two distinct versions of a f

Matrix multiplication, Matrix Multiplication: The Matrix multiplicatio...

Matrix Multiplication: The Matrix multiplication does not mean multiplying term by term; and it is not an array operation. The Matrix multiplication has a very particular mean

Reading from a file in a while loop, Reading from a File in a While Loop: ...

Reading from a File in a While Loop: Though in most languages the combination of a loop and an if statement would be essential to determine whether or not the elements in a ve

Illustration of gauss elimination, Illustration of Gauss elimination: ...

Illustration of Gauss elimination: For illustration, for a 2 × 2 system, an augmented matrix be: Then, the EROs is applied to obtain the augmented matrix into an upper

Derivatives and plot, Use polyval to evaluate the derivative at xder. This...

Use polyval to evaluate the derivative at xder. This will be the % slope of the tangent line, "a" (general form of a line: y = ax + b). % 4. Calculate the intercept, b, of t

Illustration of variable scope, Illustration of Variable scope: Runnin...

Illustration of Variable scope: Running this function does not add any of variables to the workspace, as elaborated: >> clear >> who >> disp(mysum([5 9 1]))

For loops - iterator variable, For Loops which do not use an iterator Vari...

For Loops which do not use an iterator Variable in the action: In all the illustrations that we seen so far, the value of the loop variable has been used in same way in the ac

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd