Solved

Sphenic number sequence
<http://oeis.org/A007304 Sphenic numbers> are positive integers that are products of three distinct prime numbers: 30, 42, 66, 7...

3 years ago

Solved

Determine if input is a valid AHP evaluation matrix
Input is a matrix. Output is a true or false statement (1 or 0). Return true if input is a valid Analytic Hierarchy Process eval...

3 years ago

Solved

Orthonormal matrix
You decide whether any given matrix is an orthonormal matrix or not. If each column in a matrix is perpendicular to the other...

3 years ago

Solved

Is this matrix orthogonal?
Given a square matrix, a, determine whether it is orthogonal. INPUT: a, a n x n matrix OUTPUT: true or false

3 years ago

Solved

Projector Matrix
Write a function to determine whether or not the matrix is a projector. Projector matrices are defined as P^2 = P.

3 years ago

Solved

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)

3 years ago

Solved

Linear system of equations
Solve the system of equations in three variables.

3 years ago

Solved

System of equations
Find a solution to a system of equations represented by a |n| by |n+1| matrix. For instance, [ 2 0 4; => 2*x = 4 ...

3 years ago

Solved

Column norms of a matrix
Given a matrix M, return a vector y such that for each k y(k)=norm(M(:,k)) (y(k) is the Euclidean norm of the k-th col...

3 years ago

Solved

Datetime basics
Generate the datetime scalar representing the current date

3 years ago

Solved

Volume Pillar
Calculate the volume of a pillar with radius l and heigth ar.

3 years ago

Solved

Convert radians to degrees
Given input in radians, output to degrees

3 years ago

Solved

Perimeter of a semicircle
Given the diameter d, find the perimeter of a semicircle

3 years ago

Solved

Given a square and a circle, please decide whether the square covers more area.
You know the side of a square and the diameter of a circle, please decide whether the square covers more area.

3 years ago

Solved

radius of a spherical planet
You just measured its surface area, that is the input.

3 years ago

Solved

Calculate area of sector
A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

3 years ago

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

3 years ago

Solved

Draw a '1' in a zero matrix!

3 years ago

Solved

Rotate Matrix @180 degree
Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

3 years ago

Solved

Is A the inverse of B?
Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...

3 years ago

Solved

Converts numbers into characters
Converts numbers into characters

3 years ago

Solved

Find the max element of the array
Find the max element of the array

3 years ago

Solved

Square root
Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

3 years ago

Solved

Calculate the average value of the elements in the array
Calculate the average value of the elements in the array

3 years ago

Solved

to the 2 all elements
to the 2 all elements

3 years ago

Solved

the average value of the elements
Calculate the average value of the elements in the array

3 years ago

Solved

Double all elements in the array
Duplicate all elements in the array

3 years ago

Solved

Draw a '0' in a one matrix!

3 years ago

Solved

calculate the length of matrix
input 1 array, calculate the length

3 years ago

Solved

Electrical Diode Current Calculation
In engineering, there is not always a single equation that describes a phenomenon accurately enough to be applied in all instanc...

3 years ago