Community Profile # Sathyanarayan Rao

Last seen: 2 years ago Active since 2013

Professional Interests: Numerical Computing and Computer Modeling

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Electrical resistivity tomography Geometric Factors
Comparison of analytical and numerical geometric factors for surface-borehole configuration.

4 years ago | 5 downloads | Submitted

Estimating parameters for van-Genuchten soil water retention curve model
Matlab inbuilt 'nlinfit' is used to estimate van-Genuchten fitting parameters.

4 years ago | 3 downloads | Submitted

Convert white pixels in a binary image to coordinates
This function forms coordinate array [x,y] of white pixels based on user defined range.

4 years ago | 3 downloads | Submitted

Perpendicular Line to a given line forming a T-shape
Given any two points, two other points can be constructed forming a T shape

4 years ago | 1 download | Submitted

Instrument output text file with header and unwanted lines to matlab matrix
Removes header and unwanted lines from any text file and saves data in matlab matrix form.

5 years ago | 1 download | Visualizing min, max and mean
x = [1 2 3 4 5]; ymin = [0.01 0.02 0.03 0.04 0.05]; % lower error bar position ymax = [0.02 0.03 0.04 0.05 0.06]; % uppe...

5 years ago | 0

how to draw a bar chart with max and min
x = [1 2 3 4 5]; ymin = [0.01 0.02 0.03 0.04 0.05]; % lower error bar position ymax = [0.02 0.03 0.04 0.05 0.06]; % uppe...

5 years ago | 0

Submitted

JPG image to EIDORS finite element model data via linear interpolation
EIDORS image is generated based on jpg image pixels.

5 years ago | 1 download | Submitted

Remove reciprocals from a Electrical Impedance Tomography (EIT) scheme
Removes reciprocal quadrupoles from a EIT scheme.

5 years ago | 2 downloads | How to extract data from a plot for various values of X and Y axis?
speed = [1 2 3 4 5] time = [0.03 0.05 0.07 0.09 0.1] h = plot(time,speed); xdata = (get(h, 'XData')) ydata =...

5 years ago | 0

Submitted

Integer to Integer map using logical indexing
Logical indexing is used to map integer from one set to another

5 years ago | 1 download | How to convert binary image to 2D triangulation?
Check this code that uses Gmsh https://nl.mathworks.com/matlabcentral/fileexchange/61507-binary-image-to-finite-element-mesh...

5 years ago | 0

Submitted

carnatic music mayamalavagowla first sarali swara generation in MATLAB
The semitones of sarigama is generated in matlab using a sinusoidal signal.

5 years ago | 1 download | Solved

convert matrix to single column
given any matrix, convert it to single column

5 years ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

5 years ago

Submitted

Binary image to Finite element mesh ( GMSH geo file )
This code creates GMSH geo file from an image boundary that can be readily meshed using GMSH.

5 years ago | 5 downloads | To read nodes and elements of the .msh file to Matlab
Please check http://nl.mathworks.com/matlabcentral/fileexchange/59682-visualizing-gmsh-msh-file-in-matlab-using-triplot and let ...

6 years ago | 0

Submitted

Visualizing GMSH .msh file in MATLAB using TRIPLOT
In this code, I import GMsh .msh file and form elements and nodes matrix which is then visualized.

6 years ago | 13 downloads | Submitted

Electrical Impedance Tomography Image Reconstruction using MATLAB based freeware EIDORS
In this code, using EIDORS Electrical Impedance Tomographic Image Reconstruction is demonstrated.

6 years ago | 10 downloads | Submitted

MATLAB to gmsh .geo file
MATLAB to gmsh compatible text file using fprintf

6 years ago | 10 downloads | Submitted

Points to Surface Matrix
Given a set of coordinates and its connection information, surface data is generated.

6 years ago | 1 download | Submitted

Regularized Least Square: Tikhonov Regularization test for Hilbert matrix.
Regularized Least Square and ordinary least square solution are compared.

6 years ago | 16 downloads | Submitted

Linear Regression: Least Square Solution
Least square solution is demonstrated for human population data

6 years ago | 3 downloads | Submitted

Transmittance and Reflectance Spectra of Multilayered Dielectric Stack using Transfer Matrix Method
Transfer Matrix Method is used to calculate transmittance and reflectance of dielectric layers.

6 years ago | 26 downloads | Submitted

Electrical Resistivity Forward problem: Poisson's equation with heterogeneous conductivity
Poisson's equation is solved for a heterogeneous medium with varying conductivity.

6 years ago | 7 downloads | Question

What is Block error in Simulink ?
I am trying to simulate a very simple RC circuit and I get the following error when I try to run the model. Each physical ne...

6 years ago | 0 answers | 0

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Submitted

Two dimensional wave interference using Finite Difference Time Domain method (FDTD).
Using FDTD, interference of two sinusoidal source is visualized using FDTD method in TM mode.

6 years ago | 9 downloads | Submitted

Magic Time Step in 1D FDTD
1D FDTD illustration using magic time step

6 years ago | 2 downloads | Submitted

Explicit Numerical Methods to solve Differential Equation
Here , I compare Euler, Runge-Kutta and Adam-Bashforth methods to integrate a simple function.

6 years ago | 2 downloads | Submitted

Analytical plot of Dielectric function of Lorentz medium
This code plots complex dielectric function of a Lorentz medium using its analytical formula.

7 years ago | 3 downloads | 