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# Dyuman Joshi

##### Last seen: Today
1,306 total contributions since 2018

Mechanical Engineer

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Under the sea: Snell's law & total internal reflection
<https://en.wikipedia.org/wiki/Snell's_law> When a light travels from one medium to another medium, depending on the refracti...

3 hours ago

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pizza deals
Given two pizza slices of different sizes: * Slice A with angle alpha1, radius r1, and price p1 * Slice B with angle alpha2,...

4 hours ago

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Flipping
Write code that can reverse the vector without using any sort of loop. Example Given the input vector A = [ 1 2 3 4 5...

4 hours ago

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Flipping a Matrix
Flipping matrix up and down. If a central row is exists, leave it, and flip remaining rows. Example Mat = magic(3) ...

4 hours ago

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ASCii Code
Using Matlab get the ASCii for '?'

5 hours ago

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ASCii Code
Using matlab, give the symbol that is associated with ASCii code 122

5 hours ago

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find the 'M'
for an input x, return 1 at the location of the letter 'M'

5 hours ago

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Where is the number that you want to find?
For a given matrix A, find where the input number x appears. Do this task by returning the vector which contains the row and th...

5 hours ago

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Test
Answer the question and the correct answer write in vector. Only one answer is correct. 1a Yes 1b No 1c No 1d No ...

9 hours ago

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Divide the Least Common Multiple by the Greatest Common Divisor of two numbers
Divide the Least Common Multiple by the Greatest Common Divisor of two numbers. For example, for x=12345 and y=54321, the answer...

9 hours ago

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Calculate SNR in dB using original signal and quantized signal
origs: the original signal quants: the quantized signal *hint* : need to calculate the quantization error and plug into SN...

10 hours ago

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Fractal: area and perimeter of Koch snowflake
Starting from an equilateral triangle with side 's', what is the area and perimeter of Koch snowflake at n'th recursive iteratio...

10 hours ago

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Equal temperament - musical notes and frequency
Starting from 440Hz note (musical note A above middle C), create 13 notes, using twelve-tone equal temperament, in Herz units. ...

10 hours ago

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Probability of red tulips (at both ends of a row)
I planted tulip bulbs in a row on my flower bed. I thought that I had planted white tulips all. However, later, it turned out t...

1 day ago

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How brilliant are you?
A Brilliant number is defined as a number with two prime factors, both of which have the same number of digits. Some examples: ...

1 day ago

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Sum of self power series
The series, 1^1,2^2,3^3,4^4,.... Find the sum of such series when x terms are given.

1 day ago

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Create a magic square matrix for a given odd integer
A magic square of size 'N' is a matrix that satisfies the following criterias: # Dimension - NxN # Matrix should contain ALL...

1 day ago

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Relation between functions "dec2bin" & "dec2binvec"
Here it's an easy problem we try to find the relation between the two functions "dec2bin" & "dec2binvec", so here you must write...

1 day ago

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Insert Special character in character cell array.
input={'a','b','c'} then ans={'a','*','b','*','c'}

1 day ago

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Average of even-numbered columns
Given a vector, find the average of even-numbered columns. e.g x　=　[ 4 6 8 9 1 2 7 ] y =　( 6 + 9 + 2 ) / 3

1 day ago

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Sum the elements in either diagonal of a square matrix
Sum the elements of a square matrix that lie on either the major diagonal or anti-diagonal. (Include all elements that are part ...

1 day ago

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Combination of Vectors
Return a combination of vectors x1, x2 based on y1, y2 per: x(j) = 0 if y1(j) < y2(j) x(j) = x1(j) if y1(j)...

1 day ago

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Vector indexing: lower than mean
Find all values in a vector lower than the mean of the vector

1 day ago

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Component area
Find the area of the component below, all measurements are in mm <<https://image.ibb.co/hocruF/Component.png>>

1 day ago

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Find the index of the lowest number in a matrix
Take a matrix, and find the [row cal] index of the lowest number

1 day ago

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Vector pop
Take |n| elements from the end of the vector |v| and return both the shorten vector |v| and the |n| elements in a separate vecto...

1 day ago

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Separate even from odd numbers in a vector - with a loop
*Using a loop*, rearrange a vector of integers such that the odd numbers appear at the beginning, and even numbers at the end. T...

1 day ago

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Generate a string like abbcccddddeeeee
This is the string version of Problem 1035. <http://www.mathworks.com/matlabcentral/cody/problems/1035-generate-a-vector-like-1-...

1 day ago

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Add a vector to a matrix
Given a matrix |mat| of size |mXn| and a row vector |v| of size |1Xs|, return a matrix with |m+1| rows that conatains |mat| over...

1 day ago

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remove every row&col for every nan
for a given matrix, remove the row and column of every nan. Example x=[1 2 NaN 4 5 6 7 8 ...

2 days ago