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Simple String Concatenation
This is a simple problem involving taking two incoming strings, and outputting the concatenated string with a space separating t...

9 years ago

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More Simple String Concatenation
Take the first string input, reverse the order of the string from the end to beginning (i.e. apple becomes elppa), add a space a...

9 years ago

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Find the sum of the largest two elements in a vector
With this one, you have to find the two largest elements in a vector and output the sum of those numbers.

9 years ago

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Primes for Large N: 2^30, System Memory Limit
This Challenge is to further improve the "primes" function for speed/memory usage to the Limit of Cody Memory. The Matlab fun...

9 years ago

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Simpsons's rule (but not Homer Simpson)
I wonder what Homer Simpson would have thought of Simpson's rule? Somehow I doubt his thoughts would have included the phrase Ne...

9 years ago

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Percentage profit:5: Cumulative Interest
If a bank is giving r% yearly cumulative interest for deposit, how much profit we can get by keeping x amount of money for n mon...

9 years ago

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Product of two multivariate polynomials
MATLAB <https://www.mathworks.com/help/matlab/polynomials.html has a few functions> for creating and manipulating single-variabl...

9 years ago

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sum all digits
input = 123456789, output = 1+2+3+4+5+6+7+8+9 = 45

9 years ago

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concatenate the elements
you should concatenate the elements of a matrix in one dimensional array, for example if the input is A = [1 2 3; 4 5 6; 7 ...

9 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...

9 years ago

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Minimum possible M of the maximum side of a triangle of given area A.
Suppose a triangle has area A. Suppose it has three sides S1, S2, and S3. Suppose M = max([S1 S2 S3]). What is the minimum po...

9 years ago

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Given a number N, find the smallest prime P>N
Given a number N, find the smallest prime P greater than N. For example: If N=10 then P=11. If N=13 then P=17.

9 years ago

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Check if any duplicates in your data
Given an array x, return a number n equal to the largest number of repetitions in your data. For example: If x=[1 2 3 6 8 4 9]...

9 years ago

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odd number odd sum
How many three digit numbers are there whose sum of the digits is odd?

9 years ago

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Delete the column with all 0 in the TABLE
In the given table (T), delete the column with all 0 data. e.g. input Banana Apple Orange Mellon __...

9 years ago

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Find the mean of a 2-D matrix after excluding elements of specified sub-matrix
You need to find the mean of a 2-D matrix after excluding elements which form an inner sub-matrix. e.g. If the input 2-D matrix ...

9 years ago

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Find the outlier in a set of samples
Given an array x of numbers. Assumed that this array has one outlier. Find the position p and the value v of the outlier in this...

9 years ago

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Simple spirometer - find your lung capacity from number and size of soap bubbles in one breath
Assumed that each bubble has practically the same diameter d. Given total number n of bubbles. Find volume v of breath.

9 years ago

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area of an annulus
Given the diameter d of the inner circle of the annulus. Given length z of a chord of the outer circle of the annulus. This chor...

9 years ago

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Given n, create n random numbers such that their standard deviation is also n.
Given n, create n random numbers such that their standard deviation is also n.

9 years ago

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Multivariate polynomials - sort monomials
In <https://www.mathworks.com/matlabcentral/cody/problems/44260-multidimensional-polynomials-convert-monomial-form-to-array Prob...

9 years ago

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Multivariate polynomials - overload multiplication
Problems <https://www.mathworks.com/matlabcentral/cody/problems/44260-multivariate-polynomials-convert-monomial-form-to-array 44...

9 years ago

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Multivariate polynomials - emulate symbolic form
In <https://www.mathworks.com/matlabcentral/cody/problems/44262-multivariate-polynomials-overload-multiplication Problem 44262> ...

9 years ago

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Outer product of multiple vectors
In tensor algebra, it is often useful to define a tensor as a product of lower order tensors. Similarly, a multidimensional arra...

9 years ago

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Practical 1, Question 2b (incomplete)
See practical_1.pdf, question 2. Currently incomplete!

9 years ago

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Calculate the sum of two polynomials
Calculate the sum of two polynomials if they are written in notation with their coefficients. example: a=[3 4 5]; b=[...

9 years ago

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Assert yourself! Hack the assert function to pass this test.
Have you ever wanted to test out one of the hacks you have seen where "games" a problem by simply overwriting the assert method?...

9 years ago

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Generate one sample of uniform random numbers between -pi and +pi
Generate one sample of uniform random numbers between -pi and +pi.

9 years ago

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

9 years ago

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Calculate Euler's phi function
Compute the Euler's phi function of a large integer. For more information about this topic please visit: <https://en.wikiped...

9 years ago