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David Hill


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4.063 total contributions since 2017

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Answered
for loop outsite functions
Can't you just put the loop in your pushbutton function and pass the loop variable to your other functions? function Messungsta...

circa 20 ore ago | 0

Answered
Deleting every n rows in matrix
newMatrix=oldMatrix(1:15:end,:);

circa 21 ore ago | 1

Answered
Only saving last run for loop
pie(1)=0; for i=1: 560; z=z+dz; pie(i+1)=pie(i)-((g/(cp*thetav(z)))*z); end

3 giorni ago | 1

| accepted

Answered
implement the A matrix using for loop
Why do you need a for-loop? Looks like you have the idea. A=zeros(2*length(x),6); A(1:2:end,1)=x; A(1:2:end,2)=y; A(1:2:end,...

5 giorni ago | 0

| accepted

Answered
Creating a histogram,
Use histogram(), the matlab documentation is quite good. https://www.mathworks.com/help/matlab/ref/matlab.graphics.chart.primit...

5 giorni ago | 0

Answered
Indexing a value from other cell arrays into a new column
for k=1:size(distances,1) a=flip(indeces(distances(k,1),:)); distances(k,3)=arrays(a(1),a(2)); end

6 giorni ago | 0

| accepted

Answered
Defining an anonymous function with 3*(N+1) variables
f=prod(exp(-beta*(diff(x(1:n+1)).^2+diff(x(n+2:2*n+2)).^2+diff(x(2*n+3:3*n+3)).^2)))*sum((x(1:n+1)-x(1:n+1)').^2+(x(n+2:2*n+2)-x...

6 giorni ago | 0

| accepted

Answered
line 15 does not work
If you inspect your variables before plotting, you will find that y is a single column. plot(t,y,'-');%this will work in your c...

6 giorni ago | 0

| accepted

Solved


Find the Pattern 9

6 giorni ago

Answered
How to solve an elliptical integral with the unknown in the integrand?
If you plot for C=0:100, you find that bcInt never exceeds 1. Re = 100; alpha = 15/360*2*pi; x=0:100; bc = @(f, C) 1./(((1-f...

7 giorni ago | 1

Answered
How to add numeric values to cell array?
for k=1:length(names) names{k}=[names{k},' ',num2str(val(k))]; end

7 giorni ago | 0

Answered
How to store words and numbers table in an array
Why not set up a struct? s = struct('a',{},'b',{},'c',{});%label the fields to whatever you want for k=1:11 s(k).a=%'Buildi...

7 giorni ago | 0

Answered
how to use fzero function?
First, fzero finds roots of nonlinear functions and should not be symbolic. If you have a polynomial you should use roots() func...

7 giorni ago | 0

Answered
How to "invert" integral function?
I might not understand your question completely. If you know the temperature and interested wavelength range, the curve can be g...

7 giorni ago | 1

Answered
How to stop rounding values when i use array?
The values in your array (a) are not rounded, they are only rounded in the display of them. To see the actual values, change for...

7 giorni ago | 0

Answered
convert image matrix to row vector
yourMatrix(:)';

7 giorni ago | 0

Solved


Consecutive Equation Times (of the day)
Many times throughout the day can represent mathematical equations. In this problem, we focus on the largest consecutive run of ...

8 giorni ago

Solved


Equation Times (of the day)
Many times throughout the day can represent mathematical equations. In this problem, we focus on times that include the four bas...

8 giorni ago

Solved


Draw Letter 'L'

8 giorni ago

Solved


Count the square-full divisors of a number

8 giorni ago

Solved


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 ...

8 giorni ago

Solved


Bernoulli's Equation
Bernoulli's equation states that for an incompressible fluid the following summation is constant across the flow: v^2/2 + g*z + ...

8 giorni ago

Answered
Trying to solve a four variable equation for a range of values
If you want all possible combinations, then use ndgrid. Z0=1.5; Fmin=0:10; Rn=1:20; gammas=-10:1; gammopt=13:.1:20;%I have ...

8 giorni ago | 0

Answered
How write closed interval inside loop
You should just make g1, g2, and g3 matrices. No loop is necessary. g1=[l1',m1'-2*v1',m1'+3*v1',2*u1']; g2=[l2',m2'-4*v2',m2'+...

9 giorni ago | 0

| accepted

Solved


Number Puzzle - 108

9 giorni ago

Solved


Number Puzzle - 107

9 giorni ago

Solved


Number Puzzle - 106

9 giorni ago

Solved


Number Puzzle - 105

9 giorni ago

Solved


write down a script that gives us like the following example:)

9 giorni ago

Answered
errors using Numerical Integration
y = @(x) 1./(sqrt(1+x.^4)); %just need a dot (./) a = -1; b = 1; S_int = integral(y,a,b);

9 giorni ago | 0

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