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# Tim

1 301 total contributions since 2012

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Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.&#8519;^(-&lambda;t).cos(2πft)| Given inputs &lambda; ( |lambda...

14 jours ago

Solved

Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

15 jours ago

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Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

15 jours ago

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Create a vector
Create a vector from 0 to n by intervals of 2.

15 jours ago

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Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

15 jours ago

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Find max
Find the maximum value of a given vector or matrix.

15 jours ago

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RSA decryption
Decrypt a large integer string using RSA decryption given the public key (n) and private key (d). Convert the large integer decr...

17 jours ago

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RSA encryption using public key
Encrypt the message text by converting to uint8 matrix using UTF-8 representation. Convert uint8 matrix to a large integer strin...

17 jours ago

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Calculate value of Ra for three runs. Flow rates
Problem 5.31, page 220, from Felder and Rousseau Elementary Principles of Chemical Processes book <https://www.academia.edu/3...

19 jours ago

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Calculate the derivative of a polynomial
Example: in = [ 1 1 1 ] out = [ 2 1 ]

19 jours ago

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Calculate BMI
Given a matrix |hw| with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 inch = 2.54 centimet...

19 jours ago

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Determine RSA keys (public and private) given two prime number character strings (p and q)
Given two prime number character strings (p and q), generate the RSA public and private keys (n and d) with e = 65537. The more ...

25 jours ago

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What time can I drive after drinking?
At T o'clock, after a hard day of Matlab, I immediately start drinking and treat myself to N pints of tasty beer. Each beer I dr...

environ 2 mois ago

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Get Next Combination
Return next combination For example three-element combinations of 1:5 1 2 3 1 2 4 1 ...

environ 2 mois ago

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Float like a cannonball
Given gravity on earth (g=9.81 [m/s/s]) find the distance s [m] by a cannonball propelled at a speed of u [m/s] from the origin ...

environ 2 mois ago

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Determine the square root
Determine the square root of the value the user has entered, n.

environ 2 mois ago

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Vogel-Dobbener entropy
*Vogel-Dobbener entropy* is a measure of dispersion for ordinal variables. Given an ordered list of distinct observations u_...

2 mois ago

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Compound Interest Rate Calculation With Yearly Deposition Into A Bank Account
The problem adds a twist to the compound interest calculation by having the bank account owner depositing a fixed amount of mone...

3 mois ago

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Find the centre of an arc and its radius
Given two points on an arc (x0,y0) and (x1,y1) and the angle between them, alpha. Return the centre of the circle and the rad...

4 mois ago

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Rearrange the given matrix to have all its zeros climb up to the top of each column - using for loops.
Given a matrix x, *using loops only* return a matrix y, in which all the zeros have "climbed" up to the top. That is, any zeros ...

4 mois ago

Solved

Pascal's Equilateral triangle inside a Matrix!!!
Given a number of row 'n', generate the following pascal's matrix 'p' where spaces are filled by 'zeros'. number of row, n = ...

4 mois ago

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Invert a 3D rigid-body transformation
Given an SE(3) matrix representing a rigid-body motion, compute its inverse without using |inv()| or |pinv()| .

5 mois ago

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Create a 3D rotation matrix from roll-pitch-yaw angles
Consider a robotics application where the world reference coordinate frame {W} and a robot manipulator arm with an attached tool...

5 mois ago

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Parsing Expressions - Binary Arithmetic Operators I
Parse and evaluate expressions like these: '1 + 2' '51 - 78' '42 * 9' The only operators are +, -, *. Both argu...

5 mois ago

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Given a matrix A return a vector of the product of the elements in each column using a loop without using prod.
--------------------- for m: 3 1 3 3 10 1 9 1 9 4 1 4 5 6 5 ...

5 mois ago

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Invert a 3D rotation matrix
Given a 3D rotation matrix, belonging to the matrix group SO(3), compute its inverse without using the functions |inv()| or |pin...

5 mois ago

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Angle between two vectors
Given 2 pairs of _cartesian co-ordinates_, determine the angle between the 2 vectors formed by the _points_ and the _origin_. An...

6 mois ago

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Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

6 mois ago

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Sum of a geometric series
Give the sum of the first 'n' terms of a geometric series, given 'a' as the first term and 'r' as the ratio.

7 mois ago

Solved

Permutation Via Multiplication
Given two numbers a and b, determine if the product ab is a permutation of the digits of a. For example, this is always true for...

7 mois ago