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Schwarzschild radius
Compute the <http://en.wikipedia.org/wiki/Schwarzschild_radius Schwarzschild radius> for objects of mass m (kg). Use c = 299,792...

8 years ago

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Greed is good - Simple partition P[n].
Find a simple partition P[n]. E.g. P[10] = 4 + 3 + 2 + 1. # There are many solutions, compute just one set. # Don't repeat ...

8 years ago

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Odd times 3
Given a input matrix x, multiply all odd values by 3. Even values remain the same. example: x = [1 2 3 4 5;... 6 7...

8 years ago

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0<=x<=pi?
Check whether the given angle is between zero and pi. Return logical true or false.

8 years ago

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Find the mean of two vectors
Take two vectors, and output the mean of them (bonus if you don't use the in-built mean function)

8 years ago

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Replace all odd numbers with NaN
Replace all odd numbers in the vector or matrix with NaN. For example, if x = [1 3 4 5 8 11]; then return y = [NaN Na...

8 years ago

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Calculate the values of a polynomial.
Calculate the values of a polynomial.Input parameter p - vector of polynomial coefficients, x - matrix of the argument values. ...

8 years ago

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Happy Free Wednesday!
Just submit a solution on any Wednesday. *Related Challenges:* # Happy Free Wednesday! # <https://www.mathworks.com/matl...

8 years ago

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Replace 0 to NaN!
In given matrix A=[1 nan nan; 2 2 nan; nan nan 1]; replace NaN to 0. Use matrix A as a input.

8 years ago

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Find the maxmum value of N*N Matrix
Input x=[1 2 3; 4 5 6; 7 8 9] output: y=9

8 years ago

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Replace Nan!
Replace Nan in the given vector(v) with 9999.

8 years ago

Solved

Solve expression III
Solve expression for given vector x. Expression = (tan(2*x^2+7*x-30.25)+log(x^3-2.25))/(nthroot(sin(x^3)^2+1/5*log(x^4-2.5),3))...

8 years ago

Solved

Solve expression II
Solve given expression. alpha=0.1(-x-y-50)/(exp((-x-y-50)/10)-1) beta=5exp((-x+y-60)/20) result=alpha+beta;

8 years ago

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Find product of eigenvalues of n*n magic matrix.
Find product of eigenvalues of n*n magic matrix. Example n=3 Matrix= [ 8 1 6; 3 5 7; 4 ...

8 years ago

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Polynomial evaluation
Compute the value of a polynomial of degree n with coeffcients in vector a, at value x. p(x)=a(1)+a(2)x+a(3)x^2+...+a(n+1)x...

8 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...

8 years ago

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Determine point is located in a circle or not
Using input [x] and [y], determine the points (x,y) is located inside of circle (x^2+y^2=1) if point is located in circle,...

8 years ago

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ASCII code of a leter.
Given the letter, the output will show the corresponding ASCII code.

8 years ago

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Determinant of a 3x3 Matrix
Return the determinant of a 3x3 matrix. The built-in Matlab function det is not allowed.

8 years ago

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Find the average of a random sequance
Write a function that generates random integers within a loop, and calculates the mean of the positive numbers only. At each ...

8 years ago

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Save variables
a=[1] Save variable a that is located in workspace into current folder. File name should be 'a.mat'

8 years ago

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Feeling lucky?
Guess which number Cody is thinking (1 to 10)? (This is a game of luck more than skill. Good luck!)

8 years ago

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All odd - all even
All odd numbers in x are added, while all even numers are subtracted from this. example: x = [1 2 3 4 5]; y = +(1+3+5)-...

8 years ago

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Calories in a slice of pizza?
The total calories C in a pizza is printed on its box. You know the angle A (degrees) of the slice you placed on your plate. Ple...

8 years ago

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Simple Vector Addition
Take two incoming vectors and output the sum of the two vectors

8 years ago

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Vector Element Multiplication
Take two incoming vectors, and output the element wise multiplication of the vectors.

8 years ago

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Find the diagonal of the square of side L
You are given a square of side length L, find D the length of its diagonal.

8 years ago

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Odd row
Create a row 'y' with odd numbers where the potential maximum number is given by 'x' and the space between them by 'm'. The firs...

8 years ago

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Pad zero between every adjacent values of the vector.
you are given a vector x. you have to make an output vector y with zeros padded between every adjacent values of x. e.g x: ...

8 years ago

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Percentage profit:2
If you are selling at x dollar, you are facing r1% profit; what will be the selling price for making r2% profit?

8 years ago