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Solve the system of equations.
_Ax=b_ * _A_ - square coefficient matrix * _b_ - right side column vector Find vecor _x_.

7 years ago

Solved

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...

7 years ago

Solved

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

7 years ago

Solved

Multiply two polynomials p and q given in in vector representation.
Multiply two polynomials p and q given in vector representation. Example p=[-2 0 1 -1 3 2] q=[1 0 -1 2 ...

7 years ago

Solved

Calculate the values of a polynomial.
Calculate the values of a polynomial.Input parameter p - vector of polynomial coefficients, x - matrix of the argument values. ...

7 years ago

Solved

Find the outcast
All pairs have the same difference except for one. Output the index of the latter Example: input =[0 1; 1 0; ...

7 years ago

Solved

Encode Me From The Past
Given this input x = 2, 5, 1, 2, 4, 1, 1, 3 output should be (Five 2's, Two 1's, One 4, Three 1's) [2 2 2 2 2 1 1 4 1...

7 years ago

Solved

Get derivarive of polynomial given as vector array.
Get derivarive of polynomial given as vector array. Example p=[ 1 2 0 5 0 3 ]; result=[ 5 8 0 10 ...

7 years ago

Solved

Find max prime number
Given integer number n. Find the max prime number (mpn) that smaller than or equal to n. Example: n = 10 --> mpn = 7

7 years ago

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Add the odd numbers
Add only the odd numbers of x example: x = [1 2 3 4 5] the positive numbers are: 1 3 5, so their sum is 9

7 years ago

Solved

Chicken Race
2 chickens, Pete and Fred, compete in a 100 meter race. Pete runs at a velocity of vp meter/second and Fred is slower, running ...

7 years ago

Solved

Solve expression III
Solve expression for given vector x. Expression = (tan(2*x^2+7*x-30.25)+log(x^3-2.25))/(nthroot(sin(x^3)^2+1/5*log(x^4-2.5),3))...

7 years ago

Solved

DC-DC boost converter
Find the output voltage of a DC-DC boost converter when its input voltage is 12V and the duty cycle ratio is 0.6.

7 years ago

Solved

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

7 years ago

Solved

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...

7 years ago

Solved

Logarithm with base other than 'e'
The standard log() function in Matlab returns the natural logarithm (base equal to Euler's constant). Compute the logarithm for ...

7 years ago

Solved

determine amount cookies left
started with 3 cookies and you never ate any how many are left

7 years ago

Solved

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

7 years ago

Solved

Reverse digits of a number
Reverse digits of a number. For example, return *321* for the input *123* . The left-hand zeros can be discarded. For exam...

7 years ago

Solved

Weighted average
Compute the weighted average Y, of the vector A, given the weight vector W. The weighted average is the sum of the dot produc...

7 years ago

Solved

Second smallest number
What is the second smallest number in x? example: x = [1 2 3 4 5 6 7 8 9] y = 2

7 years ago

Solved

Create vector as shown in test cases
Create vector as shown in test cases

7 years ago

Solved

Primes for Large N: 2^30, System Memory Limit
This Challenge is to further improve the "primes" function for speed/memory usage to the Limit of Cody Memory. The Matlab fun...

7 years ago

Solved

Muphry's Law of MATLAB
You're running some simple multiplication problems through MATLAB for error checking purposes, but nothing seems to come up with...

7 years ago

Problem

Muphry's Law of MATLAB
You're running some simple multiplication problems through MATLAB for error checking purposes, but nothing seems to come up with...

7 years ago | 3 | 47 solvers

Solved

Pumpkin Pie!
It's time for desert at Thanksgiving. You've all gathered at grandma's house, and she's about to start cutting the pumpkin pie. ...

7 years ago

Solved

How many days?!?
Christmas is coming earlier and earlier each year. Thanks to rampant commercialism and Christmas Creep, "The Twelve Days of Chr...

7 years ago

Problem

How many days?!?
Christmas is coming earlier and earlier each year. Thanks to rampant commercialism and Christmas Creep, "The Twelve Days of Chr...

7 years ago | 5 | 78 solvers

Solved

Amicable numbers
Test whether two numbers are <https://en.wikipedia.org/wiki/Amicable_numbers amicable>, meaning that the sum of the proper divis...

7 years ago

Solved

The Google Interview: Two Eggs Problem
Consider the following problem, a popular Google interview question: A firm has invented a super-strong egg. For publicity pu...

7 years ago