Solved

Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

13 years ago

Solved

Parse string and identify specific string sequence in algebraic equation
Given a string S that defines an algebraic expression such as: S= 'X= A1 + A2*(Y1 + A3*Y3)*exp( A4*Y12 + Y1) ;' return a...

13 years ago

Solved

Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

13 years ago

Solved

Replace May with April
For instance, if the input is input_str = 'The flowers may bloom in April'; then the output is output_str = 'The flo...

13 years ago

Solved

Four quadrant inverse tangent function.
Create a function that returns an array P the same size as X and Y containing the element-by-element, four-quadrant inverse tang...

13 years ago

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Detect a number and replace with two NaN's
Write code which replaces the number 1 with two NaNs. Example X = [ 1 2 NaN 4 1 3 7 NaN 1 4 NaN 2] ...

13 years ago

Solved

Wrapping the Tower of Pisa
The famous artist Christo Vladimirov Javacheff, who likes pizza, wants to wrap the well-known Italian tower in paper. It is a ci...

13 years ago

Solved

Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product

13 years ago

Solved

Generate pi using logarithm
Generate pi using logarithm

13 years ago

Solved

Find out missing number from a vector of 9 elements
You are given a vector of size 9, x = [x1 x2 x3 x4 x5 x6 x7 x8 x9] Elements of x may be randomly selected without repeati...

13 years ago

Solved

Vector LCM
* Find Least Common Multiple of a given vector. * Need general solution as the test suite will be expanded. * Function Templa...

13 years ago

Solved

Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

13 years ago

Solved

Filter AC, pass DC
Input x is the sampled signal vector, may have both AC and DC components. Output vector y should not contain any AC component. ...

13 years ago

Solved

peta to nano (x-ray)
for certain x-ray radiation, given frequency in petahertz, give wavelength in nanometer, must be accurate +/- 25%

13 years ago

Solved

Given a matrix, return the last eigen value
Given a matrix, return the first eigen value For example: x = magic(5) 17 24 1 8 15 23 5 7 14 ...

13 years ago

Solved

Basics: 'Find the eigenvalues of given matrix
Find the eigenvalues y for a given matrix x.

13 years ago

Question

adding every element of an array with every element of another array?
dear all, i want to add array elements to every other element of another element of another array in simulink/matlab

13 years ago | 4 answers | 0

4

answers

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Make a 1 hot vector
Make a vector of length _N_ that consists of all zeros except at index _k_, where it has the value 1. Example: Input ...

13 years ago

Problem

What's Your BMI?
Find the body mass index. For reference, please refer to Wikipedia here: <http://en.wikipedia.org/wiki/Body_mass_index body ...

13 years ago | 3 | 316 solvers

Solved

What's Your BMI?
Find the body mass index. For reference, please refer to Wikipedia here: <http://en.wikipedia.org/wiki/Body_mass_index body ...

13 years ago

Problem

Create a Multiplication table matrix...
Create a product table in this format: P = [ 1 2 3 4 5; 2 4 6 8 10; 3 6 9 12 15; 4 8 12 1...

13 years ago | 5 | 691 solvers

Solved

Add two numbers
Calculate the sum of two numbers. Example input = [2 3] output = 5

13 years ago

Solved

First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

13 years ago

Solved

Angle of triangle
For three unknown points a b c, given three sides ab bc ca, find three angles abc bca cab in radians. Your function should b...

13 years ago

Solved

Count photos
Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total nu...

13 years ago

Solved

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

13 years ago

Solved

Trimming Spaces
Given a string, remove all leading and trailing spaces (where space is defined as ASCII 32). Input a = ' singular value deco...

13 years ago

Solved

Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

13 years ago

Solved

Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

13 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...

13 years ago