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# Surendra Ratnu

Last seen: 18 days ago Active since 2022

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Solving the system of ODEs and algebraic Equation
I am trying to solve the coupled ODE with dependent algebraic equation using RK4 method. I tried with my code below. I want to ...

3 months ago | 1 answer | 0

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How to solve the 4 differtial equation and 1 algebraic equation system for 5 unknown variable using Runge Kutta 4 method ??
There are 5 variable and have 5 equation (4 differtial equation and one is algebraic equation). We want to solve these equation ...

3 months ago | 0 answers | 0

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How can obtain the probability density function for a random discreate set of data and fit a custom distribution function ??
I have random data. I want to calculate the probability density function. I also fit a custom distribution function which is the...

3 months ago | 2 answers | 0

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FSOLVE requires all values returned by functions to be of data type double. showing while solving an algebraic equation in matlab ??
I want to solve the eqs for u_s and find out the value of u_s but i am getting error while solving the equation using fsolve. Ca...

3 months ago | 1 answer | 0

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Identify the extruded portion from object at different angle ??
I attached origin and modified images. In original images, there are extruded part from its parent boundary at different locatio...

5 months ago | 1 answer | 0

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Solve differential and algebraic equation system
I tried using the ode15s solver but i am getting this error message 'Index exceeds the number of array elements. Index must not ...

6 months ago | 2 answers | 0

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How can i solve initial value ordinary differential equation using matlab ??
I want to solve four differtial equation and these are shown in picture. Here u,s,p,r are dependent variable and t is the indepe...

7 months ago | 1 answer | 0

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Why am i getting the error 'The first input to exist must be a string scalar or character vector' while solving 4 ode using ode45 solver ??
I have four differential equation. In these four equation u, s, p, r is the function of t. I solve these equation using ode45 so...

7 months ago | 2 answers | 0

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How to find the minimum distance from one point to other point ?
In image, we have two boundaries (M- inner boundary and N-outer boundary). Suppose M boundary has 1000 points and N has 1500 poi...

9 months ago | 2 answers | 0

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How can i store the two variable in an excel sheet in every iteration of the loop ?
Suppose We have two variables, y and z. In every iteration of a loop, y and z change their values. We must store the y and z val...

9 months ago | 2 answers | 0

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How can i detect the boundary using bwtraceboundary function ??
I want to detect the seperate two boundaries (inner and outer boundary) in our case.. I want to seperately detect inner and oute...

10 months ago | 2 answers | 0

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How to find angle between a fixed point to multiple point ??
I would like to calculate the angle ABC which is shown in the figure. I have fixed line AB and multiple point on the boundary-1 ...

10 months ago | 1 answer | 0

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Average intensity of an image
Hi, an image is in unit8 or greyscale image and data in I(x_i,y_j) format. How will calculate average intensity of an image with...

1 year ago | 1 answer | 0

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How to find angle for a curve in an image??
I want to find angle alpha that is showed in image name angle.png. This figure show the angle between the extruded part and base...

1 year ago | 1 answer | 0

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How to obtain inflection points for a curve ?
We want to find points where curve changed its slop and i attached curve .mat file.

1 year ago | 1 answer | 0

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How to obtain slop for a curve at each point??
I want to estiamte the slop of curve for every point. I attached curve data .

1 year ago | 1 answer | 0

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How can seperated the extruded part and boundary ?
We want to seperate the boundary and extruded part. We want the seperate the red and green portion which is showed in image_01. ...

1 year ago | 1 answer | 0

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How can i estiamte the local distance between two boundaries at each point ??
I attched image and .mat file of boundaries. We want to measure the distnace between red and green boundary at each point which ...

1 year ago | 1 answer | 0

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How can I sepearte extruded part from its boundary in a grey scale image using matlab ?
Split the red and green portion in modified_image. Matlab code and images are attached.

1 year ago | 1 answer | 0