620 total contributions since 2014

MIET 36486065

MEng Telecommunication Systems

UPC ETSETB Barcelona

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...

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...

5 days 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./...

9 days ago | 0 answers | 0

Submitted

hints for IET GCHQ readers puzzle October 2017

hints for IET GCHQ readers puzzle October 2017

9 days ago | 4 downloads |

Answered

How do I characterize these cells by area and diameter?

Hi Tushar this is John BG <jgb2012@sky.com> NOT ALL IMAGES UPLOADED YET, EXCEEDED DAILY LIMIT. COMPLETING UPLOAD ASAP...

How do I characterize these cells by area and diameter?

Hi Tushar this is John BG <jgb2012@sky.com> NOT ALL IMAGES UPLOADED YET, EXCEEDED DAILY LIMIT. COMPLETING UPLOAD ASAP...

12 days 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 ...

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 ...

13 days ago | 0

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 ...

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 ...

13 days ago | 0

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...

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...

18 days 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...

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...

18 days ago | 0

| accepted

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...

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...

18 days 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...

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...

22 days ago | 1

| accepted

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...

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...

1 month ago | 0

| accepted

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...

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...

1 month 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...

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...

1 month 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...

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...

1 month 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' ...

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' ...

1 month 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...

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...

1 month ago | 0

Answered

In this question, would dig be 2 inputs, such as 91 and 99? And lim can be any number the user calls?

hi champions2015 this is John BG <jgb2012@sky.com> the following is a slight variation of what's been asked, this function...

In this question, would dig be 2 inputs, such as 91 and 99? And lim can be any number the user calls?

hi champions2015 this is John BG <jgb2012@sky.com> the following is a slight variation of what's been asked, this function...

1 month 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...

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...

1 month 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...

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...

1 month 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...

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...

1 month ago | 0

| 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 ...

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 ...

1 month 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),...

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),...

1 month 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...

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...

1 month ago | 1

Answered

how can I group pairs of numbers that share a common number? Thank you!

Hi Jonathan this is John BG jgb2012@sky.com the attached script answers your question, explanation 1. w is going t...

how can I group pairs of numbers that share a common number? Thank you!

Hi Jonathan this is John BG jgb2012@sky.com the attached script answers your question, explanation 1. w is going t...

2 months ago | 0

Answered

How to plot Error function of complex numbers

Hi Harekrishna Mandal this is John BG <jgb2012@sky.com> Although MATLAB standard functions erf and erfc only work with rea...

How to plot Error function of complex numbers

Hi Harekrishna Mandal this is John BG <jgb2012@sky.com> Although MATLAB standard functions erf and erfc only work with rea...

2 months ago | 1

| accepted

Answered

Problems finding exact match for a string

Hi J M this is John BG <jgb2012@sky.com> From the additional information for a much larger set of info .. The GN va...

Problems finding exact match for a string

Hi J M this is John BG <jgb2012@sky.com> From the additional information for a much larger set of info .. The GN va...

2 months ago | 1

Answered

how to make a 2 files .mat become 1?

Hi Veizal Rasyid this is John BG <jgb2012@sky.com> combining mat files into a single mat file is simple: 1. load the...

how to make a 2 files .mat become 1?

Hi Veizal Rasyid this is John BG <jgb2012@sky.com> combining mat files into a single mat file is simple: 1. load the...

2 months ago | 0

Answered

How to Generate 100 Random points inside the figure?

Hi Nathaniel this is John BG <jgb2012@sky.com> The following script, attached test_125.m, scatters points uniformly inside...

How to Generate 100 Random points inside the figure?

Hi Nathaniel this is John BG <jgb2012@sky.com> The following script, attached test_125.m, scatters points uniformly inside...

2 months ago | 0

Answered

How can i use interval with decimal at the end of a count in for loop. e.g. t=1:1:18.7

Hi Gali Musa this is John BG <jgb2012@sky.com> May be you would like to consider using an additional reference vector ...

How can i use interval with decimal at the end of a count in for loop. e.g. t=1:1:18.7

Hi Gali Musa this is John BG <jgb2012@sky.com> May be you would like to consider using an additional reference vector ...

2 months ago | 0

Answered

Why is the pause function not activating?

Hi Grant Jones this is John BG <jgb2012@sky.com> Again, pause is a MATLAB command, shouldn't you be sending the pause wrap...

Why is the pause function not activating?

Hi Grant Jones this is John BG <jgb2012@sky.com> Again, pause is a MATLAB command, shouldn't you be sending the pause wrap...

2 months ago | 0