1.031 total contributions since 2016

University of Toronto CS master's student.

martincarrington.com

Solved

Calculate Resistance 2

In this problem, you have to calculate Resistance R of a linear conductor having voltage V across it and current I is passing i...

19 dagen 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()| .

19 dagen ago

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Create a 3D rotation matrix

Consider an arbitrary coordinate frame {A}. Consider another coordinate frame {B} which has the same origin as {A} but is rotat...

19 dagen 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...

ongeveer een maand ago

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Add 3 numbers

In this problem, you have to add three numbers a, b and c. Give output d = add(a,b,c)

ongeveer een maand ago

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Ratio between sum of primes and sum of factors

Write a function that calculates the ratio between the sum of primes numbers lower or equal to x, and the sum of the factors of ...

ongeveer een maand ago

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Change the first and last diagonal element of the identity matrix to zero

Starting with the identity matrix, change first and last diagonal element to zero. Example If n=5 A = 0 0 ...

6 maanden ago

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Replace values under a limit

For a vector x and number n, the goal is to find every element of x inferior to n and replace it by n. Example x= [ 1 2 3...

6 maanden ago

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Add one raw in given matrix as shown in example

*Add one raw in given matrix as shown in example* A=[1 0;0 1]; X=[3 5]; Answer must be:[1 0; 0 1;3 5]

6 maanden ago

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Additive persistence

Inspired by Problem 2008 created by Ziko. In mathematics, the persistence of a number is the *number of times* one must apply...

6 maanden ago

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Replace secondary diagonal elements of a square array

Replace all the secondary diagonal elements of the square array A with the number n Example: A = [1 2 3 4 5 6 ...

6 maanden ago

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Find the position of first minimum value in an integer array with numbers

If x = [2 6 4 9 10 3 1 5 1] the the output should be 7, because the first minimum value (1) lies at the 7th position.

6 maanden ago

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Basics: Divide integers to get integer outputs in all cases

Divide integers a and b in such a way that output y is always an integer (in ceil manner)

6 maanden ago

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How many Integers?

Count the integers in a given vector |v|. You *must* use a loop to count each element separately. Examples: Input: v...

6 maanden ago

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Relative ratio of "1" in binary number

Input(n) is positive integer number Output(r) is (number of "1" in binary input) / (number of bits). Example: * n=0; r=...

6 maanden ago

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Perimeter

Given a sequence of points forming a closed path (first and last points are coincident) return the perimeter value. For example...

6 maanden ago

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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...

6 maanden ago

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Create an anti-identity matrix

Create an anti-identity matrix of given dimension. Examples n = 2 A = [0 1; 1 0] n = 3 A = [0 0 1; 0 1 0; 1 0 0...

6 maanden ago

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Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)

For a row vector: V=[7 1 2 -3] there is one sign change (from 2 to -3). So, the function you write must return N=1. F...

6 maanden ago

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Help the Patriots get to the Super Bowl

Given a football by the Patriots, return it to them with 2 psi less air in it. (The original psi is passed as a number to the...

6 maanden ago

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Binary

Given a positive, integer n, create a function that returns the respective binary number in the form of a vector. Example: ...

6 maanden ago

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Hard limit function

Classify x data as if x>=0 then y=1 if x<0 then y=0 Example x = [ -2 -1 0 1 2] y = [ 0 0 1 1 1]

6 maanden ago

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Matlab Basics - Switching Assignments

Switch assignments for variables x and y, for example start with x = 1 and y = 3 end with y = 1 and x = 3 Do NOT simply r...

6 maanden ago

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Matlab Basics II - Max & Index of Max

Write a function that takes a vector x, then returns both the max value in x and its location in the vector for example x ...

6 maanden ago

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Matlab Basics II - Velocity of a particle

A particle is moving in space, such that it's velocity is given by: <<http://s30.postimg.org/5rf1xtvj5/cody1.png>> write a...

6 maanden ago

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Let's see how peculiar we can get

The task is to multiply two numbers. But do it in the most peculiar possible way.

6 maanden ago

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Colon operator of two vectors

You are given two vectors of equal length: VecStart, VecEnd Each vector contain a set of integers, where VecEnd(j)>=VecStar...

6 maanden ago