418 total contributions since 2012

Professional Interests: Monte-Carlo methods

Solved

The 5th Root

Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

ongeveer 2 jaar ago

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pay it forward

THIS PROBLEM IS BEING RESCORED, PLEASE WAIT Return any number (integer between 0 and 65535) You will pass this problem if ...

ongeveer 4 jaar ago

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Blockland

Add a new block to these towers without letting them fall. To add a new block just choose the x-coordinate (between -10 and ...

meer dan 4 jaar ago

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Compute the step response of a DC motor

Compute the step response of a DC motor shown below <<http://blogs.mathworks.com/images/seth/cody/dc-motor.png>> The param...

meer dan 4 jaar ago

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Model a simple pendulum

Model a simple pendulum of length 200cm with bob of mass 100g and plot the position in degrees. The pendulum starts at 30 degree...

meer dan 4 jaar ago

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Model a falling body

An object is falling freely from a height of 22 meters under the force of gravity. <<http://blogs.mathworks.com/images/seth/c...

meer dan 4 jaar ago

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Make a low pass filter

Make a first order low pass filter that will filter out the high frequency oscillations for the given input signal. The cut-off ...

meer dan 4 jaar ago

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Produce a Fibonacci sequence

Construct a diagram that generates the Fibonacci sequence: 1, 1, 2, 3, 5, 8, 13, 21, 34.....up to 377 The Fibonacci sequ...

meer dan 4 jaar ago

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Model a mass spring system

Model an ideal mass-spring system shown below where the spring is initially stretched. <<http://blogs.mathworks.com/images/se...

meer dan 4 jaar ago

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Counting pulses in a signal

Count the number of pulses that are the result of summing each pulse generator block. Pulse Generator blocks produce a recurr...

meer dan 4 jaar ago

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Add damping to a mass spring system

Model an ideal mass-spring-damper system shown below where the spring is initially stretched. <<http://blogs.mathworks.com/im...

meer dan 4 jaar ago

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Make a full wave rectifier

Produce a full wave rectifier waveform for the given sine wave source. For a sine wave input, the output of the full wave rec...

meer dan 4 jaar ago

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Make a half wave rectifier

Produce a signal that outputs the given sine wave source when it is greater than zero and outputs zero when it is less than zero...

meer dan 4 jaar ago

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Produce a sine wave

Produce a sine wave with amplitude 3: <<http://blogs.mathworks.com/images/seth/cody/sine-eqn.png>>

meer dan 4 jaar ago

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Add offset to a signal

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-offset-eqn.png>> You should see a downward...

meer dan 4 jaar ago

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Add a block to a model

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-block-eqn.png>> In this case, the slope of...

meer dan 4 jaar ago

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Produce a cosine wave

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/cosine-eqn.png>>

meer dan 4 jaar ago

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Connect blocks in a model

Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

meer dan 4 jaar ago

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Elapsed time is -0.005204 seconds.

Write a function that takes less than zero seconds to execute, as measured using tic and toc. For repeatability, the test case p...

meer dan 4 jaar ago

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Path of least resistance

Find the length of the shortest path through the matrix from the top left to bottom right corner. You may move right, down, or d...

meer dan 4 jaar ago

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Happy 2013...

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

meer dan 4 jaar ago

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This is a palindrome and so am I

A palindrome is a sequence of characters which reads the same backward or forward, for instance 'a man a plan a canal panama'...

meer dan 4 jaar ago

Problem

This is a palindrome and so am I

A palindrome is a sequence of characters which reads the same backward or forward, for instance 'a man a plan a canal panama'...

meer dan 4 jaar ago | 6

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Implement a counter

Write a function that returns a function that counts the number of times it is invoked. Example: >> h = counter; >> h() ...

meer dan 4 jaar ago

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poll: would you like the regexp (?@cmd) functionality to be banned in Cody?

This problem is a poll (and a little bit of "white hat hacktivism" as well) regarding Cody users sentiment about the use of rege...

meer dan 4 jaar ago

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Magic!

Check whether the input matrix is a normal magic square: <http://en.wikipedia.org/wiki/Magic_square> Output the logical va...

meer dan 4 jaar ago

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Simple equation: Annual salary

Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

meer dan 4 jaar ago

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Find a Pythagorean triple

Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

meer dan 4 jaar ago

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Side of a rhombus

If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...

meer dan 4 jaar ago