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How to define second derivative in symbolic
dr/dA = -sin(A)*(dA/d) d²r/dA² = -cos(A)*(dA/d)^2-sin(A)*d²A/d²
fast 4 Jahre vor | 0
Floor/Fix rounds the result of a division (60.000) to 59
Hi Just use: s=round(a/b)
fast 4 Jahre vor | 0
Sparse matrix calculate warning: Matrix is close to singular or badly scaled.
You don't have to correct any thing. The matrix is close to singular (the determinant close to zero) Matlab indicate that Re...
fast 4 Jahre vor | 0
How I use quiver to plot 3+2i
Just use: quiver(3,2,1) for any complex number c, use: quiver(real(c),imag(c),1)
fast 4 Jahre vor | 1
| akzeptiert
Split and count unique string in cell array
A loop solution: C=unique(A);nc=length(C); B=char(A);nb=length(B); D=zeros(nc,1); for i=1:nc for j=1:nb if str...
fast 4 Jahre vor | 0
Check if a vector and matrix are orthogonal (MATLAB)
See this :Low-density_parity-check_code Orthogonality mean 'mod 2=0'
fast 4 Jahre vor | 0
The meaning and function of codes on programming
size(permutataions,1) It just compute the number of ppossible permutations. randi([1 max_choice]) is a random choise the ge...
fast 4 Jahre vor | 1
| akzeptiert
Array slice indexing?
Take for example: a=[1 2 3; 5 6 7; 8 9 12] and i=2 then a(i,end:-1:1) gives: the 2nd row in right to left order (the eleme...
fast 4 Jahre vor | 0
My yellow led control doesn't work on my gui
Just change this two lines %set callback for h10 (yellow on) set (h11, 'Callback', 'yellow_led_control(h11, h12, h10, id_flag,...
fast 4 Jahre vor | 0
| akzeptiert
Write a program that calculates the length of hypotenuse c for all (!) combinations of legs a and b and do so using a for loop!
An other way without loop a = [3;5;1;3;2]; b = [1;3;2;7;2]; [A B]=meshgrid(a,b); C=[A(:),B(:)]; c=sqrt(C(:,1).^2+C(:,2).^2)...
fast 4 Jahre vor | 0
Frage
Complex numbers not in fundamental class?
Hi Community Since a complex number is 1x1 array, why isn't in fundamental class type of datas?
fast 4 Jahre vor | 1 Antwort | 0
1
AntwortBisection method relative error
Hi Just use "while" loop with your condition as follows: f=@(x) log(x)-cos(x)-exp(-x); x1=1; x2=2; xmid=(x1+x2)/2; while (...
fast 4 Jahre vor | 1
| akzeptiert
Finding vowels in a string the user inputs and printing the vowels. Here's the problem:
my_sentence=input('Please enter a sentence: ','s'); s1=my_sentence; m=['Y','W','R','H','Z ','X','V','T','S','Q','P','N','M','L...
fast 4 Jahre vor | 0
Calculating the inner product of two input vectors and a matrix using for loop and inner function. How do I change the code I have? Thank you so much for your answers.
Hello Just write: c=sum(a.*b)
fast 4 Jahre vor | 0
