# Nguyen Huy

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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...

6 days 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;...

1 month 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.

1 month 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

1 month ago

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the average value of the elements

Calculate the average value of the elements in the array

1 month ago

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pick up 2 number!

create number A with 5 digits,number 1 is appear 2 times,other is 1 times. How many way to pick up n number randomly from 1 to ...

1 month ago

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Infinite precision division

Develop a function that will divide a very very large integer numerator, supplied to function as a string (e.g., '12233344445555...

1 month ago

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Alphabetize by last name

Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

1 month ago

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Remove the polynomials that have positive real elements of their roots.

The characteristic equation for a dynamic system is a polynomial whose roots indicate its behavior. If any of the roots of the p...

1 month ago

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Perimeter of a semicircle

Given the diameter d, find the perimeter of a semicircle

1 month ago

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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.

1 month ago

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Approximation of Pi

Pi (divided by 4) can be approximated by the following infinite series: pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... For a given numbe...

1 month ago