Answered

Tranfering excel to mat

i can think of 1 way, but it can be quite annoying. you use <https://de.mathworks.com/help/matlab/ref/textscan.html textscan>...

Tranfering excel to mat

i can think of 1 way, but it can be quite annoying. you use <https://de.mathworks.com/help/matlab/ref/textscan.html textscan>...

4 years ago | 1

| accepted

Answered

How can I get new plot on the same axes when the user put the new input and presses push button?

if you use hold on every next (new) plot will added to the old plot, so both/ all plots will be shown. to deactivate...

How can I get new plot on the same axes when the user put the new input and presses push button?

if you use hold on every next (new) plot will added to the old plot, so both/ all plots will be shown. to deactivate...

4 years ago | 0

| accepted

Answered

IF CONDITION NOT WORKING

you should add what your code is supposed to do (especially what snna is/ when shall the condition be fullfilled) if you comp...

IF CONDITION NOT WORKING

you should add what your code is supposed to do (especially what snna is/ when shall the condition be fullfilled) if you comp...

4 years ago | 1

Answered

How I can obtain the numerical values of a symbolic results?

of you have a symbolic expression use double (a is of class sym) a=double(a)

How I can obtain the numerical values of a symbolic results?

of you have a symbolic expression use double (a is of class sym) a=double(a)

4 years ago | 0

Answered

Geographical coordinates on the sphere

i guess your classmate asked this question some days before: <http://de.mathworks.com/matlabcentral/answers/320878-distance-b...

Geographical coordinates on the sphere

i guess your classmate asked this question some days before: <http://de.mathworks.com/matlabcentral/answers/320878-distance-b...

4 years ago | 0

Answered

Problem to display a matrix?

here is whats gone wrong: k=1:length(mx) j=1:length(mx) length(mx) = 1 since mx = 40, maybe cancel length but even...

Problem to display a matrix?

here is whats gone wrong: k=1:length(mx) j=1:length(mx) length(mx) = 1 since mx = 40, maybe cancel length but even...

4 years ago | 1

Answered

Why I have the error message : Subscript indices must either be real positive integers or logicals.

its pretty simple. In your testprogramm you saved erf(x1) in erf1. in your programm you overwrite erf: erf=erf(x) so tha...

Why I have the error message : Subscript indices must either be real positive integers or logicals.

its pretty simple. In your testprogramm you saved erf(x1) in erf1. in your programm you overwrite erf: erf=erf(x) so tha...

4 years ago | 0

| accepted

Answered

symsum returning a large fraction

SUM may be of class sym, try SUM=double(SUM)

symsum returning a large fraction

SUM may be of class sym, try SUM=double(SUM)

4 years ago | 0

| accepted

Answered

Labels out of the box in figures

Hi, you can access the properties of the axis and change the fontsizes (there are lots off/ + multipliers) <https://de.mathw...

Labels out of the box in figures

Hi, you can access the properties of the axis and change the fontsizes (there are lots off/ + multipliers) <https://de.mathw...

4 years ago | 0

Answered

How to read multiple jpg images in matlab

you can use a for loop and save the image data in a cell: replace png by the file type of your images. result will be a 1x250...

How to read multiple jpg images in matlab

you can use a for loop and save the image data in a cell: replace png by the file type of your images. result will be a 1x250...

4 years ago | 1

| accepted

Answered

Call elements for a cell array

Hi, with {n} you get access to the nth element >> a={[1 2] , 'abcdefg', randn(4)} a = 1×3 cell array [1×2...

Call elements for a cell array

Hi, with {n} you get access to the nth element >> a={[1 2] , 'abcdefg', randn(4)} a = 1×3 cell array [1×2...

4 years ago | 0

Answered

Matrix manipulation and replacements

there is an easy solution if the matrices have the same size, so you coule just crewate a new matrix C which is A(Irow,Jcol) ...

Matrix manipulation and replacements

there is an easy solution if the matrices have the same size, so you coule just crewate a new matrix C which is A(Irow,Jcol) ...

4 years ago | 0

| accepted

Answered

Wie Bestimme ich ein t-Wert bei dem als erstes der Wert y2=-0.5) unterschritten wird numerisch ?

Hi, der Grund warum du eine leere Menge erhälst ist, dass find einen Wert in deinem Vector y2 sucht, der genau -0.5 ist. Ist ...

Wie Bestimme ich ein t-Wert bei dem als erstes der Wert y2=-0.5) unterschritten wird numerisch ?

Hi, der Grund warum du eine leere Menge erhälst ist, dass find einen Wert in deinem Vector y2 sucht, der genau -0.5 ist. Ist ...

4 years ago | 1

| accepted

Answered

If A is a 3x4 matrix, how do you find B if B=A(1:2)?

Hi Nate, you have to be carefull by calling the contents of a matrix: >> A=[1 2 3 4; 5 6 7 8; 9 10 11 12] A = ...

If A is a 3x4 matrix, how do you find B if B=A(1:2)?

Hi Nate, you have to be carefull by calling the contents of a matrix: >> A=[1 2 3 4; 5 6 7 8; 9 10 11 12] A = ...

4 years ago | 0

| accepted

Answered

Error using load Number of columns on line 2 of ASCII file

matlab tries to create a matrix with 2 rows. obviously your second row has more or less colums than the first row, so your matri...

Error using load Number of columns on line 2 of ASCII file

matlab tries to create a matrix with 2 rows. obviously your second row has more or less colums than the first row, so your matri...

4 years ago | 1

Answered

How do we replacing empty or (NaN) cells with 0's in Matlab?

A(isnan(A))=0 % turns every NaN to zeros to "delete" a row set the row =[] if A(i,:)==0 A(i,:)=[] you c...

How do we replacing empty or (NaN) cells with 0's in Matlab?

A(isnan(A))=0 % turns every NaN to zeros to "delete" a row set the row =[] if A(i,:)==0 A(i,:)=[] you c...

4 years ago | 0

Answered

>>root([1 -1 -2]) for a polynomial is not working.

the first error results in a spelling mistake: you typed root instead of roots, the second works fine: >> c = [3 -2 1 2 ...

>>root([1 -1 -2]) for a polynomial is not working.

the first error results in a spelling mistake: you typed root instead of roots, the second works fine: >> c = [3 -2 1 2 ...

4 years ago | 0

Answered

How do I make a cell with the following contents?

if i understood you right your problem is in one of the following lines: frames={x(1:end) x(2:end) x(3:end) y(1:end) y(2:en...

How do I make a cell with the following contents?

if i understood you right your problem is in one of the following lines: frames={x(1:end) x(2:end) x(3:end) y(1:end) y(2:en...

4 years ago | 1

Answered

Undefined Function ,,,,, for input arguments of type 'char'

i run your code, and i did not get any error message s = input('Student Number: ', 's'); [Login] = ValidSN(s); disp...

Undefined Function ,,,,, for input arguments of type 'char'

i run your code, and i did not get any error message s = input('Student Number: ', 's'); [Login] = ValidSN(s); disp...

4 years ago | 0

| accepted

Answered

Can you put a switch statement within an IF statement?

all off them work but not as you expect them to i suppose A and B are matrices... check the output of A<B and when it is "...

Can you put a switch statement within an IF statement?

all off them work but not as you expect them to i suppose A and B are matrices... check the output of A<B and when it is "...

4 years ago | 0

Answered

how to fix error in selecting minimum value from iteration matrix?

concerning your problem with the minimum: check <https://de.mathworks.com/help/matlab/ref/min.html min> you can either use...

how to fix error in selecting minimum value from iteration matrix?

concerning your problem with the minimum: check <https://de.mathworks.com/help/matlab/ref/min.html min> you can either use...

4 years ago | 1

| accepted

Answered

How do I go about plotting this function in MATLAB?

Hi Paul, first of all, there is no need to use syms if you just want to create a function. you can use function handle an...

How do I go about plotting this function in MATLAB?

Hi Paul, first of all, there is no need to use syms if you just want to create a function. you can use function handle an...

4 years ago | 0

Answered

Solve an eqution in matlab

D(t)=R_t <=> D(t)-R_t=0 use <https://de.mathworks.com/help/matlab/ref/fzero.html fzero> tSolution=fzero(D(t)-R_t,0)...

Solve an eqution in matlab

D(t)=R_t <=> D(t)-R_t=0 use <https://de.mathworks.com/help/matlab/ref/fzero.html fzero> tSolution=fzero(D(t)-R_t,0)...

4 years ago | 0

| accepted

Answered

I have a matrix column with a number in each row, but they are not consecutive (per example, from 3 it jumps to 6). How can I turn them into a consecutive order?

depending on what you really mean by "sorting" and "consecutive", here are 2 different solutions: A=randi(10,12,4) A = ...

I have a matrix column with a number in each row, but they are not consecutive (per example, from 3 it jumps to 6). How can I turn them into a consecutive order?

depending on what you really mean by "sorting" and "consecutive", here are 2 different solutions: A=randi(10,12,4) A = ...

4 years ago | 0

Answered

how to draw line between points in Matlab

if you want lines between the points you have to save the data in vectors and plot the vectors, not single points i changed s...

how to draw line between points in Matlab

if you want lines between the points you have to save the data in vectors and plot the vectors, not single points i changed s...

4 years ago | 0

| accepted

Answered

while loop in while loop

As walter said try to replace te=toc; while te<0.01 te=toc; end toc; With te=toc if te...

while loop in while loop

As walter said try to replace te=toc; while te<0.01 te=toc; end toc; With te=toc if te...

4 years ago | 0

| accepted

Answered

Using GUI, use one push button as an image browser and another to process the image that was chosen?

there are several ways. if you are using guide, you could just use the handlea structur and save the image within handles: ...

Using GUI, use one push button as an image browser and another to process the image that was chosen?

there are several ways. if you are using guide, you could just use the handlea structur and save the image within handles: ...

4 years ago | 1

Answered

Checking if inserted text has numbers

in my opinion the easiest way would be all(isletter(expressionString)) >> all(isletter('haj%kj')) ans = logical 0 ...

Checking if inserted text has numbers

in my opinion the easiest way would be all(isletter(expressionString)) >> all(isletter('haj%kj')) ans = logical 0 ...

4 years ago | 2

Answered

how to get current running time in a stateflow , ?

if i did not missread u asked first for current time... running time: <https://de.mathworks.com/help/matlab/ref/tic.html tic ...

how to get current running time in a stateflow , ?

if i did not missread u asked first for current time... running time: <https://de.mathworks.com/help/matlab/ref/tic.html tic ...

4 years ago | 0

| accepted

Answered

calling a function: "undefined function or variable 'abc'"

Hi, if you type a = add_white_noise(Argument1, Argument2) the output will be saved within the variable named a. i gu...

calling a function: "undefined function or variable 'abc'"

Hi, if you type a = add_white_noise(Argument1, Argument2) the output will be saved within the variable named a. i gu...

4 years ago | 1