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Halder function
Find the halder function value of a number

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Given a vector x, return vector y with all negative elements from the vector x.
Given a vector x, return vector y with all negative elements from the vector x if x has negative elements. Otherwise return 0. ...

nästan 2 år ago

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F.R.I.E.N.D.S

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Watt
Ampere x Volt = Watt

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Find scalar product of two polynomials a and b, given as vector array.
Find scalar product of two polynomials given as vector array. Example a=[1 -1 2]; b=[2 4 1]; result=0

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Recursion at variable input
input of any length a =2 b =2 c =3 output = (a^b)^c = 64

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Factorions: Numbers that equal the sum of the factorials of their digits
From Wikipedia: _A factorion is a natural number that equals the sum of the factorials of its decimal digits_ For example: ...

nästan 2 år ago

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is the number happy?
test is a given integer number is Happy of not? answer 1 if yes or 0 is no

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Size

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Factorial

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Perimeter of a Triangle

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Bit to Gigabyte
1 bit = 1.25 × 10^-10 gigabytes | x is bit | y is gigabyte

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GPA
Math's credit is 5 and you got x | Physics's credit 7 and you got y what is your GPA

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Find the minimum element of the matrix
Example: If x = [3 9; 5 2] then y = 2

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factor to number
e.g. input number x=10 then it should produce y=25 or x=100 then y should be 2255. write a function or code to generate the same...

nästan 2 år ago

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Calculate the sum of elements of n*n Hilbert matrix.
Calculate the sum of elements of n*n Hilbert matrix. For example, for n=5: HilbertMatrix = [1.0000 0.5000 0.333...

nästan 2 år ago

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Solve the system of linear equations
4x - 2y +6z=8 2x + 8y +2z=4 6x + 10y +3z=0 Input is each coefficient of polynomial. For example, a=[4 ...

nästan 2 år ago

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Given A4 sizes find A3's long side
I think you know the relation between A3 and A4 paper so givens are sides of A4 x1=long side of A4 y1=short side of A4 y2 is ...

nästan 2 år ago

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Sum sum!!!
Sum the numbers from 1 to n

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Deriving a function using the difference quotient
Write a function that evaluates the derivative of a function in a given point using the well-know formula of the difference quot...

nästan 2 år ago

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Adding Cells with numbers defined as strings
Given a cell, with strings representing numbers, add each value. For example: a = {'9','33'}; the output should be: ...

nästan 2 år ago

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Cody Computer Part 2 - Get the license number of Cody Computer
In the Cody computer investigation party, you may have already solved : <http://www.mathworks.com/matlabcentral/cody/problems...

nästan 2 år ago

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Calculate correlation.
There are two data. y1=[0 1 2 3 4]' y2=[2 3 4 5 6]' We can see positive relationship between y1 and y2. The relations...

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Finding sum of even numbers in a vector.
Find the sum of all the even numbers present in the input vector x. Examples: Input x = [1 2 3 4] Output y is 6 Input...

nästan 2 år ago

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Datetime basics
Generate the datetime scalar representing the current date

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~(*|/)
Return three quarters of n without using addition, subtraction, multiplication or division.

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Add 2 Vectors

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Surface area of a cone

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A matrix of introverts
You are given a matrix full of numbers who happen to be very shy. Write a MATLAB function that will put a square of zeros aroun...

nästan 2 år ago

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step function

nästan 2 år ago