Answered
Adding an extra column
Hi this is John BG <jgb2012@sky.com> Instead of U=(sqrt(S)/n).*((B.*H)/(B+(2.*H))).^(2/3) use U=(sq...

nästan 5 år ago | 1

Answered
Error using surf X, Y, Z, and C cannot be complex error
Hi this is John BG <jgb2012@sky.com> The problem is not in solving x = 0:0.8:pi; A = sin(x).^(1/3) B = cos(x)...

nästan 5 år ago | 2

| accepted

Answered
Solving for Coefficient in Nonlinear 2nd-Order Differential Equation
Hi Alexander this is John BG <jgb2012@sky.com> 1. One of the tools available is MuPAD, start MuPAD with mupad ...

nästan 5 år ago | 0

Answered
solving equation in matlab
Hi Esraa this is John BG <jgb2012@sky.com> *1. Check Real and Imaginary* Since the equation is complex, it's useful to ...

nästan 5 år ago | 0

Answered
Checking repetition of random data
Hi Ahmed this is John BG <jgb2012@sky.com> so far, the supplied answers increase the probability to generate all-different...

nästan 5 år ago | 0

Answered
searching row indices in a matrix
Hi Chaitanya to meet the requirement I want the row indices in B which correspond to a vectors. you may want to conside...

nästan 5 år ago | 0

Answered
Here is the entire code. Trying to fit the data into a piecewise exponential fucntion and testing the maximum likelihood. Where is the mistake. Could not figure it out. Help please..
Hi Marwan this is John BG <jgb2012@sky.com> when correcting the following line [mldln,conf1] = mle(xdata,'pdf',@pdf...

nästan 5 år ago | 0

| accepted

Answered
Creating a script that finds all triple of the Pythagorean theorem.
Alec use the very useful function combinator, available from MATLAB CENTRAL, i copy it here at the end of my answer. Pyt...

nästan 5 år ago | 1

| accepted

Answered
How do I characterize these cells by area and diameter?
Hi Tushar this is John BG <jgb2012@sky.com> Comment: the start image of this answer is part of the batch including th...

nästan 5 år ago | 1

| accepted

Answered
calculation variable x besselj
Hi Thomas this is John BG <jgb2012@sky.com> One way to solve this equation is with the function *intersections.m* by Mr Sc...

ungefär 5 år ago | 0

Question


GCHQ puzzle for IET readers October 2017, any one with same results?
Hi this is John BG <jgb2012@sky.com> The Institute of Engineering and Technology (IET <http://www.theiet.org/ www.theiet./...

ungefär 5 år ago | 0 answers | 0

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answers

Submitted


hints for IET GCHQ readers puzzle October 2017
hints for IET GCHQ readers puzzle October 2017

ungefär 5 år ago | 1 download |

Thumbnail

Answered
Override default behavior of Shift+F10
Hi Rayle this is John BG <jgb2012@sky.com> the following only captures one keystroke at a time, but as long as the figure ...

ungefär 5 år ago | 0

Answered
Real time detect keypress
Hi Michael this is John BG jgb2012@sky.com 1. Let me show you how to use figure to capture keystrokes ...

ungefär 5 år ago | 4

Answered
Question about using ODE45
Hi Nicia this is John BG <jgb2012@sky.com> 1. t is just a parameter, not the reference vector of the differential equat...

ungefär 5 år ago | 1

Answered
how to import the output of a function displayed
Hi segun this is John BG <jgb2012@sky.com> Let be your data for instance A=randi([-1e4 1e4],5,1) 1. choose the Exc...

ungefär 5 år ago | 0

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Answered
MATLAB plotting problems...
Hi David this is John BG <jgb2012@sky.com> your code doesn't plot because m is scalar while y is a vector. command plot...

ungefär 5 år ago | 1

| accepted

Answered
How to use matlab to count these particles?
Hi Tushar this is John BG <jb2012@sky.com> 1.- Acquiring petri image, using green layer only, manually binarising the wh...

ungefär 5 år ago | 8

Answered
4 non linear simultaneous equations
Hi Misha this is John BG <jgb2012@sky.com> 1. define the function to solve with in for instance a separate file fu...

ungefär 5 år ago | 0

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Answered
I have a question in image processing, this code shows how to add noise to the image and then retrieve it again ... The problem when retrieving the image error occurs and show the image that was retrieved in white
Hi Ahmed I have applied some changes to your code but perhaps you would like to consider using a different filter. attache...

ungefär 5 år ago | 0

| accepted

Answered
Euclidean distance (ED)calculation in matlab
Hi TUSHAR MURATKAR this is John BG <jgb2012@sky.com> I have written a scaled solution with only 12 rows 1. the Eucli...

ungefär 5 år ago | 0

| accepted

Answered
Generating unique random numbers less than 1 in matrix
Hi Hany Salem this is John BG <jgb2012@sky.com> 1. Initial consideration The 'shoot first and check later' approach...

ungefär 5 år ago | 1

Answered
String not read correctly
Hi Lmm3 this is John BG jgb2012@sky.com Why not simply using a switch? b = 'AGA'; switch b case {'UUU' ...

ungefär 5 år ago | 1

Answered
need to use a function to calibrate the weight of a alkan.
Hi Kjetil Svihus This is John BG <jgb2012@sky.com> The function you ask for has already been implemented by Gerhard Nieuwe...

ungefär 5 år ago | 0

Answered
I am trying to do this problem, but I'm having some issues with steps 2 3 and 4. I thought I did it right, but the values stored in the "velocites" vector all share the same value and they shouldn't. Any help would be appreciated
Hi Caleb this is John BG <jgb2012@sky.com> I have reproduced the steps listed in your question, not to optimise code or sp...

ungefär 5 år ago | 0

Answered
what is the wrong in this code?
Hi Ahmed this is John BG <jgb2012@sky.com> 1. it may be that rather than real an imaginary parts, you may consider usin...

ungefär 5 år ago | 1

Answered
nanmean returns -Inf
Hi Balsip this is John BG <jgb2012@sky.com> 1. while A=[NaN NaN -12 NaN NaN NaN NaN -1 -5 -8 NaN NaN NaN NaN -20 N...

ungefär 5 år ago | 1

| accepted

Answered
Can someone please provide me with the code for this plot
Hi Ajshay Verma this is John BG <jgb2012@sky.com> 1. A possible approach would be to use the common ODE tools, but, at ...

mer än 5 år ago | 1

| accepted

Answered
how to find the largest scalar in array with 2 ways?
Hi AnhThu Le this is John BG jgb2012@sky.com Let's say you have the following matrix A=randi([1 10],randi([1 5],1,1),...

mer än 5 år ago | 0

| accepted

Answered
Removing like terms in a matrix
hi there this is John BG <jgb2012@sky.com> 1. the data A = [1 2 3 4 5 6 7 8 9] B = [2 4 5 8 9] 2. w...

mer än 5 år ago | 1

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