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Sathyanarayan Rao


82 total contributions since 2013

Professional Interests: Numerical Computing and Computer Modeling

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Submitted


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

3 months ago | 1 download |

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Submitted


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

6 months ago | 6 downloads |

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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.

6 months ago | 1 download |

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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

8 months ago | 1 download |

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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.

11 months ago | 0 downloads |

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Answered
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...

11 months ago | 0

Answered
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...

11 months ago | 0

Submitted


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

12 months ago | 0 downloads |

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Submitted


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

1 year ago | 0 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 year ago | 0

Submitted


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

1 year ago | 0 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...

1 year ago | 0

Submitted


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

1 year ago | 0 downloads |

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Solved


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

1 year 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 ...

1 year 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.

1 year ago | 6 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 ...

2 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.

2 years ago | 23 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.

2 years ago | 12 downloads |

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Submitted


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

2 years ago | 12 downloads |

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Submitted


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

2 years 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.

2 years ago | 10 downloads |

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Submitted


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

2 years ago | 1 download |

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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.

2 years ago | 26 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.

2 years ago | 6 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...

2 years ago | 0 answers | 0

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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.

2 years ago | 6 downloads |

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Submitted


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

2 years ago | 2 downloads |

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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.

3 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.

3 years ago | 6 downloads |

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