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Solve an ODE: first-order linear equation
In the fall semester of [redacted], my professor for a course on ordinary differential equations said, “There are two groups of ...

1 year ago

Solved

Classify numbers as abundant, deficient, or perfect
A number is perfect if the sum of its proper divisors (i.e., divisors excluding the number itself) is equal to itself. For examp...

1 year ago

Solved

Property dispute!
Two neighbors have rectangular plots of land A and B. The surveyors give you the coordinates of each. If they overlap, there is ...

1 year ago

Solved

Smallest distance between a point and a rectangle
Given two points *x* and *y* placed at opposite corners of a rectangle, find the minimal euclidean distance between another poin...

1 year ago

Problem

Family Savings Analysis
Given the bank accounts of individuals defined by a list of tuples containing the last name, first name, and savings: accounts ...

1 year ago | 0 | 6 solvers

Solved

Deduce the pattern behind the sequence

1 year ago

Solved

Special Relativity 101.
Special relativity states that the effective mass of an object varies as a function of its velocity. If *c* is the speed of ligh...

1 year ago

Solved

Calculate the h-index
H-index is a powerful tool for quantifying the scientific contribution of a researcher. H-index is defined as follows (source - ...

1 year ago

Solved

Create cell array of numeric arrays
Convert the input to a cell array, but only if necessary. If the input is a numeric array, return a 1-by-1 cell array contain...

1 year ago

Solved

Area of polygon
Given the vertices in vectors X,Y, return the area of the polygon they define.

1 year ago

Solved

Number of vertices of a hypercube
Return the number of vertices of a n-dimensional hypercube.

1 year ago

Solved

Determine ground distance from an aircraft to a DME station
In aviation, distance measuring equipment (DME) uses radio signals to determine slant distance from an aircraft to a ground stat...

1 year ago

Solved

Google Drive: MATLAB mat file download
Matlab 'mat' files are notoriously hard to email and download as they are binary files. To make a 'mat' file downloadable from ...

1 year ago

Solved

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. ...

1 year ago

Solved

Repeat string n times
You will be provided a string (s = 'string1_') a starting point (num1 = 6) (always bigger than or equal to zero) and n (n = 3)...

1 year ago

Solved

Generate a list of composite numbers

1 year ago

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how many of the entries are positive?
Given x= sin(linspace(0,10*pi,100)), how many of the entries are positive?

1 year ago

Solved

Prime number check (★★)
One way to see if a number x is prime is to compute the remainders obtained when dividing x by all integers from 2 to √(x). If x...

1 year ago

Solved

PIN code III

1 year ago

Solved

Area of right triangle
Given a hypotenuse and a leg , calculate the area of right triangle.

1 year ago

Solved

Determine the potential energy in a springrope which hangs over from a bridge
The task is to figure out the energy a person with mass has when hung on a rope over a bridge when given the length from the sus...

1 year ago

Solved

Make visible max values
Make visible maximum values of rows input = [1 2 3 4 5; 6 9 8 2 1; 2 1 4 5 8; 1 9 7 9 2]; ...

1 year ago

Solved

Add non-triangular numbers
The nth triangular number is the sum of the first n positive integers. The sequence of triangular numbers starts 1, 3, 6, 10, 15...

1 year ago

Solved

Creating a matrix by taking shifted copies of a given vector v as columns
This problem is the same as the problem 761 except that here we are testing it for any given vector ; a row or column vector. Th...

1 year ago

Problem

Maximizing Stock Profit
As a stock exchange broker focusing on a single transaction, your goal is to maximize profit by buying a stock at a low price an...

1 year ago | 0 | 21 solvers

Solved

Calculo das raizes com Bhaskara
Dado três valores a, b e c. Calcule as raizes da equação ax² + bx + c = 0 * para raizes reais, deve ser arrendondado em 2 casas...

1 year ago

Solved

Determine if Input is Oddish or Evenish (Odd/Even Sum of Digits)
Given a positive integer n, determine whether n is "oddish" or "evenish" - that is, whether the sum of the digits of n is odd or...

1 year ago

Solved

Create block matrix of integers (j+k-1) - Part I
Given m, n, p, and q, create a matrix of m-by-n blocks (submatrices), each sized p-by-q. The elements of the (j,k)th block all h...

1 year ago

Solved

Place numbers
Given two input first input is a matrix which consist of the index numbers of the second input vector. You place the second inpu...

1 year ago

Solved

Least Absolute Deviations (L1-norm) line fit - degree 1
Matlab's polyfit function is very handy to find least-squares regression. It minimizes the (L2-norm) of the estimation errors, b...

1 year ago