Answered
Scatter3, insert dashed line downwards, and sideways
Here I assumed x, y, z are vectors of length "len". To draw a line joining each scatter point to the horizontal plane use: ...

9 years ago | 0

| accepted

Answered
Find a pair of elements in a 3d matrix
Note: if it's 512*512*2 (three dimensional), it's called tensor, not matrix. A way to do what you require would be to first d...

9 years ago | 0

Solved

Check if a rotated array was originally sorted
Suppose a sorted array is rotated at some pivot unknown to you. For example, |[0 1 2 4 5 6 7]| might become |[5 6 7 0 1 2 4]|. ...

9 years ago

Answered
Need help putting multiple values in Legends
Here I assumed, as it seems from your question, that T is a 1xm vector and that Nl is a 6xm matrix. First I'd define an empty...

9 years ago | 0

Answered
How to arrange local stiffness matrix to global stiffness matrix
I strongly suspect there is something wrong with your scheme in the image attached. The stiffness matrix #2 (marked in red), fo...

9 years ago | 4

Solved

Polynomial evaluation
Compute the value of a polynomial of degree n with coeffcients in vector a, at value x. p(x)=a(1)+a(2)x+a(3)x^2+...+a(n+1)x...

9 years ago

Answered
how to find values of X and Y that satisfy condition Z(X,Y)>a
Is it something like this you're looking for? function [vec_pairs, num_pairs] = find_greater(X, Y, a) len_X=length(X); ...

9 years ago | 0

Answered
How to solve a Riccati Control (differential) Equation?
You don't need to solve a differential equation. "Steady-state" means the solution (here, the matrix *S*) remains _constant_, wh...

9 years ago | 0

Solved

Simpsons's rule (but not Homer Simpson)
I wonder what Homer Simpson would have thought of Simpson's rule? Somehow I doubt his thoughts would have included the phrase Ne...

9 years ago

Solved

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

9 years ago

Solved

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...

9 years ago

Solved

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 ...

9 years ago

Solved

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...

10 years ago

Solved

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...

10 years ago

Solved

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...

10 years ago

Solved

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...

10 years 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...

10 years ago

Solved

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...

10 years ago

Solved

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...

10 years ago

Solved

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...

10 years ago

Solved

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

10 years 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...

10 years 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...

10 years ago

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

10 years ago

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Free passes for everyone!
_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): As an addit...

10 years ago

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

10 years ago

Solved

Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...

10 years 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...

10 years ago

Solved

Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

10 years ago

Solved

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...

10 years ago