Community Profile # Dyuman Joshi

Last seen: Today Active since 2012

Mechanical Engineer IITG'20 Time zone - GMT +5.30 (IST)

Programming Languages:
MATLAB
Spoken Languages:
English
Professional Interests:
Fluid Dynamics, Aerospace Engineering, Aerodynamics, Computational Fluid Dynamics (CFD)

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Compute measurement uncertainty
Suppose a variable depends on independent variables , , . If the independent variables have uncertainty , , etc. and the uncer...

12 days ago

Solved

Compute the maximal product of any two numbers whose concatenation is n
Write a function that takes an input and computes the maximal product of numbers that concatenate to . For example, if , then t...

12 days ago

Solved

Count the number of folds needed to pack a large sheet
In a certain paper factory, large sheets of paper are being made every day. Before sending the sheets for shipment, they have to...

27 days ago

Solved

Neural Net: Back Propagation of Quad Output with Bias, ReLU
This challenge is to return the WH_delta and WP_delta, given X, WH, WP, EPY using ReLU on the hidden layer and Softmax on the ou...

27 days ago

Solved

Neural Net: Back Propagation of Dual Output with Bias
This challenge is to return the WH_delta and WP_delta, given X, WH, WP, EPY using Sigmoid on the hidden layer and Softmax on the...

27 days ago

Solved

Neural Net: Calculate Bias Quad Output Perceptron (Counter, Mux, Subtraction)
This challenge is to calculate the Neural Net Bias Quad Output Perceptron vector, PY, and Pclass, given X, WH, and WP using ReL...

27 days ago

Solved

Neural Net: Calculate Bias Dual Output Perceptron (AND/NAND/OR/NOR/XOR/XNOR)
This challenge is to calculate the Neural Net Bias Dual Output Perceptron vector,PY and Pclass, given X, WH, and WP using Sigmoi...

27 days ago

Solved

Neural Net: Calculate Perceptron
This challenge is to calculate the Neural Net Perceptron value,P, given X, WH, and WP using ReLU on the hidden layer. This examp...

1 month ago

Solved

Neural Net: Calculate Bias Single Perceptron (AND/NAND/OR/NOR/XOR)
This challenge is to calculate the Neural Net Bias Perceptron vector,P, given X, WH, and WP using ReLU on the hidden layer. Test...

1 month ago

Solved

Neural Nets: Activation functions
Return values of selected Activation function type for value,vector, and matrices. y=Activation(x,id); where id is 1:4 for ReLU...

1 month ago

Solved

Neural Net: Best Index of Prediction array
The final ouput of a neural net application is a Prediction matrix/vector,P, that gives the probability of the input being of a ...

1 month ago

Solved

Throwing Dice - Will You Be Eaten By The Dragon?
You and a dragon have agreed to let dice rolls determine whether it eats you or not. The dragon will roll a single die, of x si...

1 month ago

Solved

Draw the Greek letter 'α'
Given the dimensions of a matrix nRow and nCol where nCol > nRow, draw the Greek letter 'α' with 1's and 0's. You can consider t...

2 months ago

Solved

String vowel manipulation
Given a string, find all the vowels and shift them to the end of the string in the same order as they are found.

2 months ago

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Make a (better) checkerboard matrix
This problem seeks to expand the task in Cody Problem 4 by allowing for the creation of checkerboard matrices that can be rectan...

2 months ago

Solved

Find the Peak Particle Velocity on a ETL structure
PPV is a vibration parameter that can connect stress to a structure, it is measured in mm/s or mm/s-1. The higher the PPV the mo...

2 months ago

Solved

Array Height (no usage of size)
Find the array height, the number of rows. Size may not be used.

2 months ago

Solved

Array Width (no usage of size)
Find the array width. Size may not be used.

2 months ago

Solved

Array size along k-th dimension
Given an n-dimensional array M, find the size of M along the k-th dimension (1 <= k <= n), without using size(), height() or wid...

2 months ago

Solved

Count collisions in an idealized block system
Two blocks, which have masses and , slide along a frictionless, semi-infinite track bounded by a stationary wall. Initially blo...

2 months ago

Solved

Next lexicographic - permutation
Find next lexicographic - permutation (permutations as it would occur in a dictionary order). E.g: nextP('ABCD') = ABDC If you...

2 months ago

Solved

Getting Maximum Chocolate
John loves Chocolate but he didn't have money. The owner of "Sweet Chocolate" launches a scheme for free chocolate. He divided a...

2 months ago

Solved

Implement Euler's formula for calculating polyhedron edges
Your function will take as input the number of faces f and number of vertices v of a polyhedron. It will output the number of ed...

2 months ago

Solved

Kaprekar Steps
6174 is the Kaprekar constant. All natural numbers less than 10,000 (except some with same digits) can be reduced to 6174 in the...

2 months ago

Solved

How many revolutions around the earth
Calculate how many revolutions you will around the earth till 1/1/2100. Given the birhdate find your age in number of days on 1...

2 months ago

Solved

Word with Highest Frequency
Write a MATLAB function that takes in a string and returns the word with the highest frequency in the string. The function shoul...

2 months ago

Solved

Convert row and column subscripts to linear indices
Convert 2D row and column subscripts to linear indices WITHOUT sub2ind Example: row = [1 2 3 1]; col = [2 2 2 3]; sz = [3 3]...

2 months ago

Solved

Matrix spiral
Make a spiral in a (n*n) matrix. The spiral has to start in the top left, and has to rotate clockwise to the center. The spiral ...

2 months ago

Solved

Word Distance - Sum
Let's suppose that the distance of a word can be calculated by summing the differences between its letters, having assigned the ...

3 months ago

Solved

Finding valleys
You have a vector of altitudes (units are arbitrary) and need to find the depths of all the valleys. You also need to determine ...

3 months ago