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Determine the length of a string of characters
Determine the length of a string of characters

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

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Pythagorean perfect squares: find the square of the hypotenuse and the length of the other side
Given the square root of a square number, *seed*, and a range, *n*, find the square number, *Z* as well as the other side, *y*, ...

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Similar Triangles - find the height of the tree
Given the height, h1, of a power pole, shorter than a tree, a given distance, x2 away, please find h2, height of the tree. Pleas...

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What is the distance from point P(x,y) to the line Ax + By + C = 0?
Given a point, P(x,y), find the distance from this point to a linear line. INPUTS: x, y, A, B, C OUTPUTS: d, the distance ...

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Einsteinium-253 decay
Radioactive Einsteinium-253 has a half-life of 1,768,608 seconds. Given 1000mg of Einsteinium-253 at t=0 days, how much is lef...

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Frobenius Norm
Write your own version of Frobenius Norm without using the 'norm' function.

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Solve the set of simultaneous linear equations
Given this pair of simultaneous linear equations: 2x + 3y = 23 3x + 4y = 32 Find the solution set (x,y)

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Generate N equally spaced intervals between -L and L
Given N and L, return a list of numbers (in ascending order) that divides the interval [-L L] into N equal-length segments. For...

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Kelvin to Celsius
Degrees Celsius = degrees Kelvin - 273.15. Given a temperature in Kelvin, return the equivalent temperature in Celsius.

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Matlab Basics II - Log and natural log
Write a function that calculates the difference between the log and natural log of a vector, to two decimal places example: ...

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Matlab Basics - Pick out parts of a vector
Consider x a vector of length >= 7 (there are at least 7 elements in the vector, write a script that extracts the 2nd element, a...

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Area of rhombus
Calculate the rhombus area

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Do Fast Fourier Transformation
Example Fast Fourier Transformation from vector [2,1]) ans = 3 1

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Sum of the Multiplication of Vectors
Given the vectors x and y as input, multiply the vectors and return the summation of its elements. Example: x = [1 2 ...

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Largest Prime Number
Given a matrix X, find the largest prime number in X.

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Find out phase angle of second order system.
Find out the phase angle of a second order system. In a control system, the phase angle is given by the inverse of cos.

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Find out magnitude of vector
Find out magnitude of vector. Say x=[1 2 3], then answer must sqrt(1^2+2^2+3^2) Please don't use sum function. If you l...

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calculate interest saved because of reduction of interest rate
calculate interest saved because of a reduction of interest rate per year (Assuming No leap year) Currently, in India, rate o...

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Transpose of matrix
Transpose of matrix as per test cases

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Create Vector containing following elements
Create Vector containing following elements A=[pi eps NaN inf -inf flintmax];

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Determine the mean of matrix
Determine the mean of matrix without using mean function Hint: use simple algorithm

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Append two matrix as shown below example
Append two matrix as shown below example A=[1 2; 3 4] and B=[5 6;7 8] Answer must be 1 2 5 6 3...

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Your favourite city!
Type your favourite city.

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Matlab Basics II - Extract last 3 elements of a vector
Let x be a vector of unknown length, we are always interested in the last 3 numbers in the vector, write a function that gives t...

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Switch matrix to a column vector
for e.g. x = [1 2 3 4] y = 1 3 2 4

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Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];

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Evaluating a polynomial
Given the following polynomial and the value for x, determine y. y = 3x^5 – x^3 + 8x – 3 Example x = 1 y = 3 - 1 +...

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Number Puzzle - 045

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Let's get back to school, and create multiplication tables
For a given range, create multiplication tables. (start is always < endno) Example start = 17 endno = 19 Then, ...

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