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Multiply by 3
Given the variable x as your input, multiply it by three and put the result in y.

10 years ago

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Y=X
Given an input variable x, output a variable y that is equal in value to x. Example: Input x = 1 Output y is 1 Inp...

10 years ago

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Add 7
Given an input variable x, output a variable y that is 7 greater than x. Example: Input x = 1 Output y is 8 Input ...

10 years ago

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only input
Return the output without writing any code into the function.

10 years ago

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Create a square matrix of multiples
Given an input, N, output a matrix N x N with each row containing multiples of the first element of each row. This also applies...

10 years ago

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Try 1.5.4: Celsius to Fahrenheit
Write a program to convert an input given in Celsius to Fahrenheit. Examples: Input celsiusValue = 100 Output fahrValu...

10 years ago

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multiply 2 by 2
multiply 2 by 2

10 years ago

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wipe out!
make all the elements in given x zero.

10 years ago

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add 1
given x, y should be 1 greater than the input.

10 years ago

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Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

10 years ago

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Back to basics 8 - Matrix Diagonals
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...

10 years ago

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Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value. 3 Inputs: ...

10 years ago

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Expand a term
Given a term, as a string, expand it. e. g. f = '2(x + y)';

10 years ago

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Calculate some equation
Using given inputs x and z, make two outputs that are y1 = (xz)/(x/z)^2 + 14x^2 - 0.8z^2 y2 = x^z - z^x + (x/z)^2 - (z/x...

10 years ago

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make an eye matrix which element is 1:n
for a given input n, make an n by n matrix which contains elements 1:n for example input =5 output = [1 0 0 0 0;0 2 0 0 0; 0...

10 years ago

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Smith numbers
Return true if the input is a Smith number in base ten. Otherwise, return false. Read about Smith numbers at <http://en.wikipedi...

10 years ago

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Bell Number calculator
Calculate a vector of Bell numbers for sets up to length n. Bell numbers are the maximum number of partitions of a set. See the ...

10 years ago

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

10 years ago

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Find the 9's Complement
Find the 9's complement of the given number. An example of how this works is <http://electrical4u.com/9s-complement-and-10s-c...

10 years ago

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Armstrong Number
Determine whether the given input n-digit number is Armstrong Number or not. Return True if it is an Armstrong Number. An n-D...

10 years ago

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Narcissistic number ?
Inspired by Problem 2056 created by Ted. In recreational number theory, a narcissistic number is a number that is the sum of ...

10 years ago

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Create tangent function out of cosine only
Please don't use tangent and sine functions

10 years ago

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Create tangent function out of sin and cos
Please don't use tan(x) directly

10 years ago

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Create tangent function out of sine function only
Please don't use cosine and tangent functions

10 years ago

Solved

Sum positive elements of matrix.
Calculate sum of positive elements of the matrix.

10 years ago

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Compare two strings.
Compare two strings, whether they are equal or not.

10 years ago

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find the 'M'
for an input x, return 1 at the location of the letter 'M'

10 years ago

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sum as columns
sum as columns.

10 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.

10 years ago

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Add the even numbers
Add only the even numbers of x example: x = [1 2 3 4 5] the positive numbers are: 2 4, so their sum is 6

10 years ago