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peta to nano (x-ray)
for certain x-ray radiation, given frequency in petahertz, give wavelength in nanometer, must be accurate +/- 25%

12 years ago

Solved

03 - Matrix Variables 3
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3c.png>> A 10x10 matrix where the numbers from 1 to 100 ...

12 years ago

Solved

03 - Matrix Variables 1
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3a.png>> A 9x9 matrix full of 2's (Hint: use *ones* o...

12 years ago

Solved

03 - Matrix Variables 4
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3d.png>> A 3x4 NaN (Not a Number) matrix (Hint: use ...

12 years ago

Solved

03 - Matrix Variables 5
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3e.png>>

12 years ago

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Number Persistence
A number's persistence is the number of steps required to reduce it to a single digit by multiplying all its digits to obtain a ...

12 years ago

Problem

Number Persistence
A number's persistence is the number of steps required to reduce it to a single digit by multiplying all its digits to obtain a ...

12 years ago | 5 | 83 solvers

Solved

Multiply 2 numbers
Very easy, you just have to multiply 2 numbers but you cannot use the following signs (*, /, - ,^) ,mtimes , times, cross, pro...

12 years ago

Solved

Project Euler: Problem 7, Nth prime
By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13. What is the Nth prime nu...

12 years ago

Solved

Average of square wave
given positive and negative peak , calculate dc level, 50% duty cycle

12 years ago

Solved

Transpose
Write a MATLAB script in order to convert a random length row vector (v) into a column vector.

12 years ago

Solved

Function composition
Write a function that accepts two function handles f and g and returns the composition h. That is, h = (f o g)(x) = f(g(x)) ...

12 years ago

Solved

surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

12 years ago

Solved

Determine the number of odd integers in a vector
Determine the number of unique odd integers in a vector. Examples: Input x = [2 5 8 3 7 1]; Output y = 4; Inp...

12 years ago

Solved

The Tower of Hanoi
In the <http://en.wikipedia.org/wiki/Tower_of_Hanoi Tower of Hanoi problem> with 3 rods (1, 2 & 3), the goal is to move a tower ...

12 years ago

Solved

Flip the main diagonal of a matrix
Given a n x n matrix, M, flip its main diagonal. Example: >> M=magic(5); >> flipDiagonal(M) 9 24 1 ...

12 years ago

Solved

Replace Vector Elements
Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

12 years ago

Solved

Check to see if a Sudoku Puzzle is Solved
*Description:* Your task, should you choose to accept it, is to make a function that checks to see if a 9x9 matrix of integer...

12 years ago

Solved

Implement simple rotation cypher
If given a letter from the set: [abc...xyz] and a shift, implement a shift cypher. Example: 'abc' with a shi...

12 years ago

Solved

Find the next prime number
Find the next prime number or numbers for given n. For example: n = 1; out = 2; or n = [5 7]; out = [7 11]; ...

12 years ago

Solved

Cody Computer Part 4 : Are you a morning Cody player Addicted ?
This is a stupid Cody challenge. You just have to *click "Submit" between 7 and 9 AM.* ... Greenwich Mean Time (GMT). To see ...

12 years ago

Solved

Find nearest prime number less than input number
Find nearest prime number less than input number . For example: if the input number is 125, then the nearest prime number whi...

12 years ago

Solved

select the primes of a vector
Find the prime numbers in a vector

12 years ago

Solved

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...

12 years ago

Solved

That's some divisor you've got there...
Given a positive integer x, calculate the sum of all of the divisors of the number. Please include the number itself in your fi...

12 years ago

Solved

Binary Coder
Take an input number and print the binary value of this number.

12 years ago

Solved

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....

12 years ago

Solved

04 - Scalar Equations 1
Define the variable a: <<http://samle.dk/STTBDP/Assignment1_4-a.png>> Use this to calculate x: <<http://samle.dk/STTBD...

12 years ago

Solved

02 - Vector Variables 3
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_2c.png>> (all the numbers from 5 to -5 in increments of ...

12 years ago

Solved

03 - Matrix Variables 6
Make _fMat_ be a 5x3 matrix of random integers with values from -3 to 3 (Hint: use *randi*)

12 years ago