1

answerI have a program that builds a three-dimensional graph. And I need two-dimensional for a fixed t.
spoiler</function diffuzia
x0=0;
xt=10000;
t0=0;
tt=120000;
m=300;
n=10000;
dt=(tt-t0)/n;
h=(xt-x0)/m;
u(1:m/2,1)=0.3;
u((m/2+1):m+1,1)=0;
for j=1:n
for i=2:m
if i==2
u(i-1,j)=u(i,j);
end
if i==m
u(i+1,j)=u(i,j);
en...

asked April 19th 20 at 12:27

0

answerThe expression complicated. Is a method of staging or using plot to plot and detail, Maple does not consider normal, and not familiar with MAtlab.

asked April 8th 20 at 02:55

0

answerMake a program in scilab, but there is such a tag seems not.
The problem lies in the part of the code where I'm trying out matrix constraints Aeq and right sides of the inequalities beq to make foaly tipo y = 2x + 1 for the function plot. What error was there that I learned because first disp in the loop displays the valu...

asked April 7th 20 at 09:52

1

answerThe task: run a spectral analysis and synthesis of functions using the fast Fourier transform (FFT).
With the spectrum analyzer still clear, but with a spectral synthesis of function - no. Tell me, what is this synthesis, and what is its result? As the clause specified that if you do a reverse FFT, you need to consider 1, 2...

asked April 4th 20 at 13:27

2

answersit would look like is a formula in Matlab?
you need to write but have no idea how to write ]2.3
it seems
H1 = [(x(1+x*2)+(1+2x)*2]2.3
but it is wrong
ideas?

asked April 3rd 20 at 17:33

0

answerAre there any ready Matlab methods for inverse regression? There are methods stepwise, stepwisefit, stepwiseelm, but they as I understood first perform a forward regression, and then backward. Is it possible somehow to have only backward selection? And if so, how? Please give examples of such methods

asked April 3rd 20 at 17:27

2

answersHow do I make it so that when I enter values in "txt" and "txt2", they are saved in variables, so I was able to use them in "def next():" [in my example is to put the end code "plt.plot(x,y, '--bo')"]import matplotlib.pyplot as plt
from tkinter import*
import tkinter
def start():
window = Tk()
window.title("Entry point...

asked April 2nd 20 at 15:46

1

answerInstalled, no icon((( that in the folder - it is not clear what to start.

asked April 2nd 20 at 15:21

1

answerDo I need a key? I at least have a trial version to put.

asked April 2nd 20 at 15:10

0

answerIn Matlab do not look painted as simply as possible, I need more to understand the algorithm.
The brief description to find the most similar array in another array.
The problem is, 2 images, 1 of them is a piece of the second (may not be), it is necessary to find coordinates of where the smaller image it looks like more tha...

asked April 2nd 20 at 15:09