Community Profile # andrea84

Active since 2012

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Math Test
Your teacher gave you 15 minutes and 25 problems. In how much time can each Problem be solved, before time flies away? Writ...

7 years ago

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07 - Common functions and indexing 4
Define the matrix _cMat_: <<http://samle.dk/STTBDP/Assignment1_3c.png>> ( _cMat_ = 10x10 matrix where the numbers from 1 t...

7 years ago

Solved

06 - Matrix Equations 1
Define the vectors _aVec_ and _bVec_ and the matrix _aMat_: <<http://samle.dk/STTBDP/Assignment1_2a.png>> and <<http:/...

7 years ago

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07 - Common functions and indexing 5
Create the vector _lin_: <<http://samle.dk/STTBDP/Assignment1_7e.png>> (the integers from 1 to 20) Make every other val...

7 years ago

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07 - Common functions and indexing 2
Define _eMat_: <<http://samle.dk/STTBDP/Assignment1_3e.png>> Calculate eMean as the mean across the rows of _eMat_. The an...

7 years ago

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Find supported functions
Given a function name, return true if that function is supported by the toolboxes that are installed with MATLAB on this machine...

7 years ago

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Given a number find two variables
If the input is *x*, find *a* and *b* from the following equation: *x = a*2^b*. Hint: *b* is an integer while *x* and *a* ar...

7 years ago

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07 - Common functions and indexing 3
Define _eMat_: <<http://samle.dk/STTBDP/Assignment1_3e.png>> Create the variable _eMat2_, which is equal to _eMat_ with th...

7 years ago

Solved

06 - Matrix Equations 3
Define the matrices _aMat_, _bMat_, and _cMat_: <<http://samle.dk/STTBDP/Assignment1_3a.png>> ( _aMat_ = 9x9 matrix full o...

7 years ago

Solved

04 - Scalar Equations 3
Define the variables a, b, and c: <<http://samle.dk/STTBDP/Assignment1_4-a.png>> <<http://samle.dk/STTBDP/Assignment1_4-b....

7 years ago

Solved

06 - Matrix Equations 2
Define the vectors _aVec_ and _bVec_: <<http://samle.dk/STTBDP/Assignment1_2a.png>> and <<http://samle.dk/STTBDP/Assig...

7 years ago

Solved

04 - Scalar Equations 2
Define the variables a and b: <<http://samle.dk/STTBDP/Assignment1_4-a.png>> <<http://samle.dk/STTBDP/Assignment1_4-b.png>...

7 years ago

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Compare two input matrices
Check which input matrix has more elements. Return "1" if matrix A has more elements than matrix B. Otherwise return "0". Exa...

7 years ago

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Power supply: 230V to 115V
The problem is simple: we have a wall outlet which supplies 230V and an apparatus that requires 115V. Software is always chea...

7 years ago

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Back to basics - mean of corner elements of a matrix
Calculate the mean of corner elements of a matrix. e.g. a=[1 2 3; 4 5 6; 7 8 9;] Mean = (1+3+7+9)/4 = 5

7 years ago

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Time Expansion
How can you slow down any discrete-time signal? Example Input original signal x. x = [1 2 3 -1 -2 -5 -4] We want t...

7 years ago

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Convert Fahrenheit to Celsius
Calculate the Celsius temperature C given the Fahrenheit temperature F. Examples: Input F = 90 Output C is 32.22 I...

7 years ago

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counting groups!
This problem is about counting groups. Example If you have x: x = [0.8 0.8 0.8 0.3 0.3 0.4 0.5 0.6 0.6 0.9] then a...

7 years ago

Solved

Convert a vector of Integers into a matrix of binaries
Convert a vector of positive integers into a matrix containing their binary representation. Each column of the output contains t...

7 years ago

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Flip the bit
Given an input character string (e.g. '1001'), return a character string with the bits flipped ('0110').

7 years ago

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Sum of the pixel values for the blue color
Calculate the sum of the pixel values for the blue color, with a picture as an input. *NOTE:* The picture will be provided as...

7 years ago

Solved

Tax Season ! How much is my salary?
Tax Season! I was employed for a period from x until y in a year and I get pay check of amount z on every alternate Friday of th...

7 years ago

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how to make the function use a default value when it wait for inputs for too long time ?
My function is using urlread() to get data from the web. however the internet is not so good and now and then there is no intern...

7 years ago

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Slicing the cube
A bored matlab enthusiast has a cube with volume n^3. He decides to paint the entire surface of the cube red. Then, with slices...

7 years ago

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What number has this problem?
This problem is added because it is problem number *???* in the "Community" problems section. <http://www.mathworks.de/matlab...

7 years ago

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Create a two dimensional zero matrix
You have to create a zero matrix of size (mxn) whose inputs are m and n and the elements of your matrix should be zeros. Exam...

7 years ago

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

7 years ago

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Count ones
Write a program to count number of ones (1s) in an integer variable input. For example: Input x=2200112231 output y=3 I...

7 years ago

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

7 years ago

Solved

07 - Common functions and indexing 1
Define _cMat_: <<http://samle.dk/STTBDP/Assignment1_3c.png>> ( _cMat_ = 10x10 matrix where the numbers from 1 to 100 runs ...

7 years ago