fast 10 Jahre vor | 0

| akzeptiert

Beantwortet
how can I join points along a two plots with straight lines?
add at the end something like that: hold on plot(reshape([x,x,x].',1,[]),reshape([ytop,ybot,ytop*NaN].',1,[]))

fast 10 Jahre vor | 0

| akzeptiert

Beantwortet
Please how can I unstack a column of negative and positive values into 2 columns of positive and negative values respectively?
You can compare your data with zero. This will classify your data and you can use it to get what you want. Example based on y...

etwa 10 Jahre vor | 0

Gelöst

Multipliying 2 numbers
Multiplying 2 numbers

etwa 10 Jahre vor

Beantwortet
How do I set my axis values down to zero when changing my y-axis to log scale?
There is no zero on log scale. Add one line on the end of your code: ... set(gca,'yscale','log') ylim([0.4, 3]...

etwa 10 Jahre vor | 0

Beantwortet
FFT and IFFT Problem (numerically and analytically result is not same)
This is caused by side effects of digital domain # You are calculating circular convolution instead of normal one. To make co...

etwa 10 Jahre vor | 0

| akzeptiert

Beantwortet
Creating HDF5 file: How to create a GROUP inside a GROUP?
Use <http://www.mathworks.com/help/matlab/low-level-functions.html Low-Level Functions> such as H5G.create to create custom/nest...

etwa 10 Jahre vor | 0

| akzeptiert

Beantwortet
What are the disadvantages of using uppercase 'W' in fopen compared to lowercase 'w'
I guess some memory is used for buffering purposes. There should not be *any* differences in written data. 'W' or 'A' are faste...

etwa 10 Jahre vor | 1

Gelöst

Free-time Equation
Given a 7-day week, an *_nc_* -number of *_tc_* -hour classes, *_ta_* -hours awake in a day, and *_tw_* -hours that you work in ...

etwa 10 Jahre vor

Gelöst

Find longest run
Write a function longest_run that takes as input an array of 0's and 1's and outputs the length and index of the longest consecu...

etwa 10 Jahre vor

Gelöst

Create a Video
Create an avi video of the function surf(sin(2*pi*k/20)*Z,Z) for k=1:100 with an avi "quality" of 5. The standard quality is ...

etwa 10 Jahre vor

Beantwortet
What is wrong with my code
Are _TH_max1:3_ scalars, vectors or arrays? _&&_ and _||_ may be used only with scalars. Try: if(all(TH_max1(:) >= 0.4) && ...

etwa 10 Jahre vor | 0

Beantwortet
how to find integral for this function
In MATLAB there is a difference between calling |*| and |.*| The same is for |^| |.^| etc. Change * |*| to |.*| * |/| to...

etwa 10 Jahre vor | 0

Beantwortet
Using ifft to get the Fourier Coefficient
N=256; X=2*N; L=2*pi; x=linspace(-pi,pi,X); c=0; k = 2*pi*((1:2*N)-N-1)/L; % vectorised y = sin(x); % don't understand w...

etwa 10 Jahre vor | 0

Beantwortet
Exporting table to excel
You don't have to join tables before exporting them. You can just create spreadsheet and then add other data in other sheets or ...

etwa 10 Jahre vor | 3

| akzeptiert

Beantwortet
Dividing matrix in four parts
A = zeros(210,3); %example split = [40 60 30 80]; A_split = mat2cell(A,split); [B, C, D, E] = A_split{:}; doc mat2...

etwa 10 Jahre vor | 0

Beantwortet
Could someone please help me speed up my code?
# If you have to use loop, <http://nl.mathworks.com/help/matlab/matlab_prog/preallocating-arrays.html preallocate> variable _RMS...

etwa 10 Jahre vor | 1

Beantwortet
How to rank a vector with repeats without MATLAB unique?
Do you want to replicate following behaviour? [~, ~, rank] = unique(data); rank = rank.'; There are thousands of ways...

etwa 10 Jahre vor | 0

Gelöst

center of mass
R is a given matrix with size [n,2]. R(i,:) is interpreted as the 2D-position of a mass point with mass i. Calculate the center ...

etwa 10 Jahre vor

Gelöst

Look Up Mapping
Let the input is A = {[] [] [] [1] []}; B = {'A','B','C','D','E'}; Mapped Output = 'D';

etwa 10 Jahre vor

Gelöst

Return the sequence element III
This problem is related to <http://www.mathworks.com/matlabcentral/cody/problems/42832-segmented-number-sequence Problem 42832>....

etwa 10 Jahre vor

Gelöst

Kaprekar numbers
Test if the input is a Kaprekar number: <http://mathworld.wolfram.com/KaprekarNumber.html>. Return a logical true or false. ...

etwa 10 Jahre vor

Gelöst

Differential equation and events
You have to solve the non-linear time variant differential equation: (cos(y)+2)*y''+atan(y)*sin(0.01*t)^2+y*sin(0.5*t)=0 ...

etwa 10 Jahre vor

Gelöst

Transpose of matrix
Transpose of matrix as per test cases

etwa 10 Jahre vor

Gelöst

Composite Trapezoidal Rule for Numeric Integration
Use the trapezoidal rule to numerically integrate a function, _f(x)_, passed as the first argument, between upper and lower limi...

etwa 10 Jahre vor

Gelöst

Bisection method of finding a root.
Test the bisection algorithm described in Chapter 5 of Steven C. Chapra's textbook, *Applied Numerical Methods with MATLAB for E...

etwa 10 Jahre vor

Gelöst

Fraction of a fraction of a ...
One sort of brainteaser problem is a math problem wherein you are asked what the given fraction of a fraction of a ... number is...

etwa 10 Jahre vor

Beantwortet
I have problem of ode45. please help me T_T
1. It seems your function rocket.m represents system of equations dH₁ = H₂ dH₂ = aH₁² + 127530 Verify, if it's what y...

etwa 10 Jahre vor | 0

Beantwortet
Problem with categorical arrays
(Copied from comments as suggested.) You are trying to make categorical array from a variable of mixed data types. categ...

etwa 10 Jahre vor | 1

| akzeptiert

Gelöst

Order of things - 4
*This is the last assignment in the _Order of Things_-series. If that past incompleteness kept you from solving it, you may star...

etwa 10 Jahre vor