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Matlab Basics - Rounding II

Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

1 year ago

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Check that number is whole number

Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. <http://en.wikipedia.org/wiki/Whole...

1 year ago

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MATLAB Basic: rounding IV

Do rounding towards plus infinity. Example: -8.8, answer -8 +8.1 answer 9 +8.50 answer 9

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MATLAB Basic: rounding III

Do rounding towards minus infinity. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 8

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MATLAB Basic: rounding II

Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

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7 segment LED display

Given a whole number, output how many segments would be lit up to display it on a 7 segment LED display (see Wikipedia: <http://...

1 year ago

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Convert Roman to Arabic Numerals

Based upon what I see on tv and at the movies, the use of Roman numerals indicates something is important or sophisticated (e.g....

1 year ago

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Math with Roman Numerals

Given a function R within (+,-,*,/) and two Roman numerals a & b, compute aRb in Roman numerals.

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Test if a Number is a Palindrome without using any String Operations

*Description* Given an integer _X_, determine if it is a palindrome number. That is, _X_ is equal to the _X_ with the digits ...

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Increment a number, given its digits

Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

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Must be in the front row...

You are given a matrix followed by a single number. Your object is to write a script that will shift the matrix around so that ...

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Number of 1s in the Binary Representation of a Number

*Description* Return the number of 1s in the (unsigned integer) binary representation of a number. This function should be ab...

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Back to basics 12 - Input Arguments

Covering some basic topics I haven't seen elsewhere on Cody. Return a value equal to the number of input arguments to the fun...

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Factorial Numbers

Factorial is multiplication of integers. So factorial of 6 is 720 = 1 * 2 * 3 * 4* 5 *6 Thus 6 factorial = factorial(720)....

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02 - Vector Variables 2

Make the following variable: <<http://samle.dk/STTBDP/Assignment1_2b.png>>

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MATLAB Basic: rounding

Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

1 year ago

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Determine if a Given Number is a Triangle Number

*Description:* Determine if the elements of an input array are triangle numbers and return the result as an array with the sa...

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Replace Nonzero Numbers with 1

Given the matrix x, return the matrix y with non zero elements replaced with 1. Example: Input x = [ 1 2 0 0 0 ...

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Matrix multiplication across rows

Given matrix m, return matrix n such that, rows of n are result of multiplication of the rows of the input matrix Example ...

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A matrix of extroverts

Now that the introverts have had their script, the extroverts spoke up (naturally!) and demanded one as well. You will be given...

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Convert matrix to 3D array of triangular matrices

Given a 2D numeric array x in which each column represents the vectorized form of an upper triangular matrix, return a 3D array ...

1 year ago

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Too Many Zeros, Dump Them!

Sometimes when I create a matrix, I use this syntax: a = zeros(1000,1000); But when the function ends, I find that I don'...

1 year ago

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Enlarge array

Given an m-by-n numeric array (A) and a 1-by-2 vector (sz) indicating the dimensions [p q] to enlarge each element, return an (m...

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Remove entire row and column in the matrix containing the input values

Remove the entire row and column from the matrix containing specific values. The specified value can be a scalar or a vector. Fo...

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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.

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Back to basics 11 - Max Integer

Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive integer MATLAB can handle.

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Evil Number

Check if a given natural number is evil or not. Read more at <https://oeis.org/A001969 OEIS>.

1 year ago