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Sathyanarayan Rao


76 total contributions since 2013

Professional Interests: Numerical Computing and Computer Modeling

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Submitted


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

18 days ago | 4 downloads |

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Answered
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 =...

1 month ago | 0

Submitted


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

1 month ago | 2 downloads |

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Submitted


Decomposing stimulation pattern for electrical resistivity tomography into direct and reciprocal
Given a set of quadrupole pattern and measurement data, this code finds direct and reciprocals.

1 month ago | 5 downloads |

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Answered
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...

2 months ago | 0

Submitted


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

3 months ago | 2 downloads |

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Solved


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

6 months 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 ...

6 months 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.

9 months ago | 12 downloads |

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Answered
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 ...

1 year ago | 0

Responded


Re: Importing a GMSH .msh file into NIRFAST(matlab platform)
Please check http://nl.mathworks.com/matlabcentral/fileexchange/59682-visualizing-gmsh-msh-file-in-matlab-using-triplot and let ...

1 year ago | 5514 views

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.

1 year ago | 15 downloads |

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Submitted


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

1 year ago | 4 downloads |

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Submitted


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

1 year ago | 10 downloads |

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Submitted


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

1 year ago | 0 downloads |

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Submitted


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

1 year ago | 14 downloads |

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Submitted


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

1 year ago | 2 downloads |

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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.

1 year ago | 38 downloads |

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Submitted


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

1 year ago | 4 downloads |

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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...

1 year ago | 0 answers | 0

0

answers

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.

1 year ago | 22 downloads |

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Submitted


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

1 year ago | 1 download |

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Submitted


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

2 years ago | 5 downloads |

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Submitted


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

2 years ago | 4 downloads |

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Submitted


Total Field Scattered Field source with Perfectly Matched Layer Boundaries
In this code, TF/SF source is implemented for 1D FDTD source along with PML Boundary condition.

2 years ago | 2 downloads |

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Submitted


Optical Spectra of Dielectric slab using 1D Finite Difference Time Domain (FDTD).
This code calculates Transmission and Reflection spectra of Etalon slab using FDTD method.

2 years ago | 4 downloads |

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Submitted


1D Finite Difference Time Domain simulation (FDTD) with Perfectly Matched Layer (PML)
FDTD is illustrated with PML absorbing boundary condition at both ends of 1D space grid.

2 years ago | 9 downloads |

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Submitted


Optical Linear Absorption of a Two Level System
In this code, differential equation for optical polarization is solved.

2 years ago | 1 download |

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Submitted


Band structure of GaAs using Parabolic Approximation
Band structure of GaAs using Parabolic Approximation

2 years ago | 9 downloads |

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Submitted


Fourier transform DFT for selected range of frequencies
For selected frequency range, DFT is computed.

2 years ago | 3 downloads |

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