Borrar filtros
Borrar filtros

What does the >> n = 1:100; >> x = ( (-1).^(n+1) ) ./ (2*n - 1); >> y = sum(x) >>plot(x(1,1:4)) mean?

1 visualización (últimos 30 días)
NN
NN el 8 de Oct. de 2023
Comentada: NN el 8 de Oct. de 2023
>> n = 1:100;
>> x = ( (-1).^(n+1) ) ./ (2*n - 1);
>> y = sum(x)
>>plot(x(1,1:4))
While executing this, what is the meaning and answer of plot line (Last command)?
  1 comentario
John D'Errico
John D'Errico el 8 de Oct. de 2023
Editada: John D'Errico el 8 de Oct. de 2023
Why not try it?
Even better, why not take a basic MATLAB tutorial, and learn MATLAB? It will be time well spent. After all, is there a reason why we should be writing an entire tutorial in MATLAB for you here, when it already exists?
If not, then look at one line at a time. TRY IT! If you don't know what the first line does, then you definitely need to start reading the manual.

Iniciar sesión para comentar.

Respuesta aceptada

Image Analyst
Image Analyst el 8 de Oct. de 2023
x is a row vector so it doesn't need two indexes. y is assigned but not used. The plot() plots the first 4 values from the x array (row 1, columns 1-4):
n = 1:100;
x = ( (-1).^(n+1) ) ./ (2*n - 1)
x = 1×100
1.0000 -0.3333 0.2000 -0.1429 0.1111 -0.0909 0.0769 -0.0667 0.0588 -0.0526 0.0476 -0.0435 0.0400 -0.0370 0.0345 -0.0323 0.0303 -0.0286 0.0270 -0.0256 0.0244 -0.0233 0.0222 -0.0213 0.0204 -0.0196 0.0189 -0.0182 0.0175 -0.0169
y = sum(x)
y = 0.7829
plot(x(1, 1:4), 'b.-', 'LineWidth', 2, 'MarkerSize', 40)
grid on;
title('Plot of first 4 values of x in row 1')
ylabel('x');
xlabel('Index')
To learn other fundamental concepts, invest 2 hours of your time here:

Más respuestas (0)

Categorías

Más información sobre Get Started with MATLAB en Help Center y File Exchange.

Productos


Versión

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by