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Rashmil Dahanayake


University of New South Wales

61 total contributions since 2013

Professional Interests: Power Converters

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NO_IP ip address synchronizer
API for NO-IP.com IP address sync

3 years ago | 0 downloads |

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Answered
Writing a script that tells you the quadrant of the coordinates
x=4;y=-7; %test value switch true case x >=0 && y>0 disp('Quadrant I') case x <=0 && y>0 disp('Quadrant II') ...

3 years ago | 0

| accepted

Answered
find and set simulink parameters for several blocks
A temporary way around this. Works only if a Tag is specified under block properties. trial_model; cc=find_system('tri...

3 years ago | 1

Question


find and set simulink parameters for several blocks
I have a simulink model with number of subsystems. For example I have used simpower systems MOSFET in multiple places within my...

3 years ago | 4 answers | 1

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connecting sqllite database from command line
HI, I'm using following commands to make a connection to sqllite database. The object variable conn.Message, appears to be -> ...

3 years ago | 1 answer | 0

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Matlab memory consumption dependancies
According to the windows task manager, Matlab consumes 430,000 K memory. This is without any functions running and variables cle...

3 years ago | 1 answer | 0

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customize Simulink Scope - default settings set
How can I change the default settings of simulink scope. I understand individual scope style (background/line,axes,logging defa...

3 years ago | 1 answer | 0

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How to generate signal like in picture
There are 3 signal with same period. Hence you need one sine wave block & 2 Repeating signal waves (for triangular and sawtooth...

3 years ago | 0

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webcam not closing properly
I'm using webcam() to acquire few images. I managed to get it working and export images in png format. However after the usage...

3 years ago | 0 answers | 0

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copy legend information - 2014b
Hi, I want to copy few figures into a new figure with subplots. Hence as the initial step i intend to copy axes and legend inf...

3 years ago | 1 answer | 2

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Answered
find missing elements in a matrix
Full Answer for my question asked previously. In case if someone might find it usefull A=1:3:20; % in complete data B=1...

3 years ago | 0

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find missing elements in a matrix
Hi, I have a matrix represents code numbers. A=[1 2 3 6 7 45 46 47 53 78 80]; B=[55.23 ,74.22]; % ...

3 years ago | 3 answers | 0

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parallel execution of system command
This can be achieved by invoking the command "start" system('start myprog1'); system('start myprog2');

3 years ago | 0

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parallel execution of system command
Is there a way to execute a system command (ie calling up a dos executable/bang operator) parallely. Within a for loop I'm call...

3 years ago | 1 answer | 0

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regexp to capture only certain length of characters
This could be the solution str4='4-44g 4541 75872 abcd stuvw'; patt4='\<\w{4}\>'; regexp(str4,patt4,'match')

3 years ago | 0

Question


regexp to capture only certain length of characters
Hi, I'm trying to capture words with 4 characters only. A word consists or alphanumeric characters.(no symbols of white space) ...

3 years ago | 2 answers | 0

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Using wildcard character in system command
I'm using 2012b Release & having problem with using wildcard symbol(*) with a system command. eg: >> [status ,out]=s...

3 years ago | 1 answer | 0

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convert character array to cell
Hi, I'm trying to generate a file list using a system command. [status ,out]=system('dir mat') The format of the variabl...

3 years ago | 1 answer | 0

1

answer

Question


regexp and string rearrange in text file
I have a .txt file which has about 350 lines. The content is the .txt file is in following format Open loop test -19-06-201...

3 years ago | 1 answer | 0

1

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Answered
Access SIMULINK simulation time while it runs.
use <http://www.mathworks.com.au/help/simulink/slref/clock.html clock> block

3 years ago | 0

| accepted

Answered
How to change FFT settings ?
Are you using the Gui of the fftscope. If so you can update the number of cycles and frequency as required. If you need only ...

3 years ago | 0

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Solved


Free passes for everyone!
_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): As an addit...

3 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

3 years ago

Solved


Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

3 years ago

Solved


Symmetric matrix
You must create a n-by-n *symmetric* matrix such that A(row,col) = row/col for col >= row. Example if n =3 : output is : ...

3 years ago

Answered
Simulink Guide lines from box to box
Select Menu > View > smart Guide lines

3 years ago | 0

Answered
how to generate square wave in matlab
t=0:.001:1; f=10; sq=1000*0.5*(square(2*pi*f*t)+1); plot(t,sq)

3 years ago | 0

Answered
How can i run different timelines in Simuink?
Use "Enabled subsytem" block for both Subsytems. Updated file attached. Sub system 1 tuns from 0-75s. Subsystem 2 runs from...

3 years ago | 0

| accepted

Answered
How can i run different timelines in Simuink?
Use an embedded matlab function to create a rule to overwrite negative time values. Attach the mdl file to investigate further

3 years ago | 0

Answered
How can I raise an anonymous expression to a power?
Firstly correct the definition the inline functions for differentiation. Start the command with @ symbol. When calling inline...

3 years ago | 0

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