Gelöst

Sum of series V
What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?

fast 8 Jahre vor

Gelöst

Sum of series IV
What is the sum of the following sequence: Σ(-1)^(k+1) (2k-1)^2 for k=1...n for different n?

fast 8 Jahre vor

Gelöst

Sum of series III
What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?

fast 8 Jahre vor

Gelöst

Sum of series II
What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?

fast 8 Jahre vor

Gelöst

Spot the outlier
All points except for one lie on a line. Which one is the outlier? Example: You are given a list of x-y pairs in a column ...

fast 8 Jahre vor

Gelöst

Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

fast 8 Jahre vor

Gelöst

Vector of numbers divisible by 3
* Input(n) - any integer * Output(v) - vector with numbers divisible by 3(exept 0) starting from n to 0 Examples: * n=6...

fast 8 Jahre vor

Gelöst

Reverse the elements of an array
Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...

fast 8 Jahre vor

Gelöst

Area of rhombus
Calculate the rhombus area

fast 8 Jahre vor

Gelöst

Distance walked 2D
Suppose you go from x-y coordinates [3,4] to [0,0] to [0,1] to [1,1], then you walked 7 units of distance.

fast 8 Jahre vor

Gelöst

Colon operator of two vectors
You are given two vectors of equal length: VecStart, VecEnd Each vector contain a set of integers, where VecEnd(j)>=VecStar...

fast 8 Jahre vor

Gelöst

fly fly away
A fly moves following a predefined sequence of discrete jumps (defined by the vectors _dx_ and _dy_) repeating the same sequence...

fast 8 Jahre vor

Gelöst

Factorial !
Calculate the factorial of a non-negative integer without using the built in function *factorial*

fast 8 Jahre vor

Gelöst

Find out sum of prime number till given number
Find out sum of prime number till given number Example, if number is 10, then answer must be 17.

fast 8 Jahre vor

Gelöst

05 - Vector Equations 1
Define the vector _cVec_: <<http://samle.dk/STTBDP/Assignment1_2c.png>> (all the numbers from 5 to -5 in increments of -0....

fast 8 Jahre vor

Gelöst

Power of n ?
Determine if _x_ (positive integer) is a power of _n_, return true or false accordingly.

fast 8 Jahre vor

Gelöst

Recurring Cycle Length (Inspired by Project Euler Problem 26)
Preface: This problem is inspired by <http://projecteuler.net/problem=26 Project Euler Problem 26> and uses text from that quest...

fast 8 Jahre vor

Gelöst

Fermat's Last Theorem - Fermat's conjecture
Fermat's Last Theorem (sometimes called Fermat's conjecture, especially in older texts) states that no three positive integers a...

fast 8 Jahre vor

Gelöst

Lychrel Number Test (Inspired by Project Euler Problem 55)
The task for this problem is to create a function that takes a number _n_ and tests if it might be a Lychrel number. This is, re...

fast 8 Jahre vor

Gelöst

Largest Twin Primes
<http://en.wikipedia.org/wiki/Twin_prime Twin primes> are primes p1, p2 = p1 + 2 such that both p1 and p2 are prime numbers. Giv...

fast 8 Jahre vor

Gelöst

Sophie Germain prime
In number theory, a prime number p is a *Sophie Germain prime* if 2p + 1 is also prime. For example, 23 is a Sophie Germain prim...

fast 8 Jahre vor

Gelöst

Make an awesome ramp for a tiny motorcycle stuntman
Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

fast 8 Jahre vor

Gelöst

Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

fast 8 Jahre vor

Gelöst

Numbers with prime factors 2, 3 and 5.
Make a function which takes one positive integer n and returns a matrix with the numbers of the form (2^i)*(3^j)*(5^k) which are...

fast 8 Jahre vor

Gelöst

Happy 2013...
Happy 2013, everyone! An interesting tidbit about 2013 is that it is the first year since 1987 to contain four different digits...

fast 8 Jahre vor

Gelöst

Vector parallel to plane?
Given the coefficients of the equation which defines a plane as follows: ax+by+cz=d, return a boolean indicating whether the 2n...

fast 8 Jahre vor

Gelöst

rectangle in circle
In the figure below, the rectangle at the corner measures a cm x b cm. What is the radius of the circle in cm? <<http://www....

fast 8 Jahre vor

Gelöst

Wayfinding 2 - traversing
This is the second part of a series of assignments about wayfinding. The final goal is to be able to calculate the fastest route...

fast 8 Jahre vor

Gelöst

Wayfinding 1 - crossing
This is the first part of a series of assignments about wayfinding. The final goal is to be able to calculate the fastest route ...

fast 8 Jahre vor

Gelöst

distance to a straight line (2D) given any 2 distinct points on this straight line
Given 2 points P1,P2 on a straight line and a 3rd point, determine the distance of the 3rd point to the straight line. Your answ...

fast 8 Jahre vor