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Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

9 months ago

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Sum of series VII
What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?

9 months ago

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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...

9 months ago

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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;...

9 months ago

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Converts numbers into characters
Converts numbers into characters

9 months ago

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

9 months ago

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

9 months ago

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

9 months ago

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to the 2 all elements
to the 2 all elements

9 months ago

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

9 months ago

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

9 months ago

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

9 months ago

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Draw a '0' in a one matrix!

9 months ago

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Energy Conversion 2

9 months ago

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Energy Conversion 1

9 months ago

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Velocity Conversion
Given a velocity in mph, convert it to km/h. Round the answer to the fourth decimal place.

9 months ago

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Area Conversion 2

9 months ago

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Area Conversion 1

9 months ago

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Mass Conversion 2

9 months ago

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Mass Conversion 1

9 months ago

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Temperature Conversion 3
Given a temperature in Celcius, convert it to Fahrenheit.

9 months ago

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Temperature Conversion 2

9 months ago

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Temperature Conversion 1

9 months ago

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String Logic 19
Examples: 'DIG' --> 'I' 'IMPORTANT' --> 'MOTN' 'DEAL' --> 'EL' 'LIMB' --> 'IB' 'MOSTLY' --> 'OTY'

9 months ago

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Breaking Out of the Matrix
Do you want to take the Red Pill, or the Blue Pill? If you take the Blue Pill, you will simply pass along to the next problem...

9 months ago

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Energy of a photon
&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883 Given the frequency F of a photon in giga hertz. Find energy E of this photon...

9 months ago

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Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

9 months ago

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sum of non-primes
The sum of the non-primes no larger than 10 is 1+4+6+8+9+10=38 Find the sum of all the positive non-prime integers that do no...

9 months ago

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subtract central cross
Given an n-by-n square matrix, where n is an odd number, return the matrix without the central row and the central column.

9 months ago

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Nilpotent matrix
Check if matrix A is <http://mathworks.com/ nilpotent>.

9 months ago