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digital low pass FIR filter design where the cut off frequency is stuck at around -6db

General Rule: X in dB = 10*log(Power Ratio) DSP Filter designers typically work with voltage, so they will use: X in dB = 2...

digital low pass FIR filter design where the cut off frequency is stuck at around -6db

General Rule: X in dB = 10*log(Power Ratio) DSP Filter designers typically work with voltage, so they will use: X in dB = 2...

22 days ago | 0

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Dimensions of a rectangle

The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

3 years ago

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Factorize THIS, buddy

List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...

3 years ago

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Bullseye Matrix

Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

3 years ago

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Sum of diagonal of a square matrix

If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

3 years ago

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Project Euler: Problem 1, Multiples of 3 and 5

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

3 years ago

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Polar Form Complex Number Entry

Write a function that takes the magnitude and angle(in degrees) of a complex number and returns a complex variable. Positive ang...

3 years ago | 0 | 17 solvers

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Area of an equilateral triangle

Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...

3 years ago

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Complex number

For complex number c=a+bi, write code that will add a and b together.

3 years ago

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Tricky timing

Write a function that takes between 0.5 seconds and 0.6 seconds to run.

3 years ago

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Given a window, how many subsets of a vector sum positive

Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

3 years ago

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Magic is simple (for beginners)

Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

3 years ago

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Rotate a Matrix by 90 degrees

Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

3 years ago

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Duplicate each element of a vector.

for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

3 years ago

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Angle between two vectors

You have two vectors , determine the angle between these two vectors For example: u = [0 0 1]; v = [1 0 0]; The a...

3 years ago

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CONVERT TAN TO SIN

In a right angle triangle ABC given the tan(A) then find sin(A) For example tan(A)=3/4 then sin(A)=3/5

3 years ago

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High school cafeteria

Given an input vector of positive integers, return a row vector with the primes first (in increasing order) and the composites n...

3 years ago

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Length of a short side

Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

3 years ago

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Multiply 2 numbers

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

3 years ago

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Filter AC, pass DC

Input x is the sampled signal vector, may have both AC and DC components. Output vector y should not contain any AC component. ...

3 years ago

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Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

3 years ago

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03 - Matrix Variables 6

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

3 years ago

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Sort a list of complex numbers based on far they are from the origin.

Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

3 years ago

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Multiply by 3

Given the variable x as your input, multiply it by three and put the result in y.

3 years ago

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Fibonacci sequence

Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

3 years ago

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Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

3 years ago

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Tell me the slope

Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

3 years ago

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Make one big string out of two smaller strings

If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

3 years ago

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Bottles of beer

Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

3 years ago