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Juggling
There is a notation system for <http://en.wikipedia.org/wiki/Juggling jugglers> called <http://en.wikipedia.org/wiki/Siteswap si...

6 years ago

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Bernoulli's Equation
Bernoulli's equation states that for an incompressible fluid the following summation is constant across the flow: v^2/2 + g*z + ...

6 years ago

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What gear ratio does the cyclist need?
A cyclist (perhaps including our famed Codysolver the cyclist <http://www.mathworks.com/matlabcentral/cody/players/1841757-the...

6 years ago

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Mechanical Advantage of a Gear Train
Calculate the mechanical advantage of a gear train. The mechanical advantage of a gear couple is given by MA = T_o/T_i where ...

6 years ago

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Kepler's Equation
Solve <http://en.wikipedia.org/wiki/Kepler's_equation Kepler's Equation>. Note that the solution is rounded down to 5 decima...

6 years ago

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Energy of an object
Calculate the total mechanical energy of an object. Total Energy= Potential energy + Kinetic energy P.E.=m*g*h K.E.=1/2...

6 years ago

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Bouncing disk
A disk is placed in a rectangular room with dimensions a and b in a point with coordinates x0 and y0. The disk is given a startu...

6 years ago

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jogging?
Imagine x-y coordinate system and you are at the origin and your partner is on the x-axis at some small distance (d) away from y...

6 years ago

Answered
How do I solve system of equations?
If I understand you correctly, your system consist of 128 eqations. a and b are arrays of 64 unknowns each. You must then solv...

6 years ago | 0

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Answered
Join repeated continuous elements of a vector
in = [1 1 1 2 2 3 6 6 6 1 1 1 4 4 4 2 2 2 6 4 4]; i = 1; count = 1; out = []; a = in(1); while i < length(in) i = i+1; ...

6 years ago | 0

Solved

Mechanics 1
I thought I would make a mechanics problem for all those physics lovers out there. Imagine two solid, rigid spheres B1 and B...

6 years ago

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Find the palindrome
Given the string a, find the longest palindromic sub-string b. So when a = 'xkayakyy'; you should return b = 'kayak';

6 years ago

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What is the next step in Conway's Life?
Given a matrix A that represents the state of <http://en.wikipedia.org/wiki/Conway's_Game_of_Life Conway's game of Life> at one ...

6 years ago

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Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

6 years ago

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Fsolve don't work good with trigonometric
Your function has several different zeros. Which one fsolve finds will depend on the starting point. I ran: f = 100; while no...

6 years ago | 0

Submitted

polyfix(x,y,n,xfix,yfix,xder,dydx)
Fit polynomial p to data, but match exactly at one or more points

6 years ago | 9 downloads |

5.0 / 5

Question

Help text does not work for user-defined functions
I just installed R2019b and the help function does not work. Example: I created the addme function from the Add Help for Your P...

6 years ago | 2 answers | 2

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answers

Question

Is there a way to avoid repeating time-consuming calculations from odefun in the events function?
The right-hand side in my ODE is quite time-consuming. In the course of calculating dy/dt I calculate a variable u that I also u...

6 years ago | 2 answers | 0

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answers

Answered
First order ODE parameter fit to dataset
The challenge is how to use your table of temperatures in your updateStates function. At a given time t, you must interpolate y...

6 years ago | 0

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Answered
How to calculate a curve for different variables?
Here is one way to do it. I have reduced the number of elements in your Time and V vectors in order to make a nicer surface plo...

6 years ago | 0

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datetime default stetings 12/24
Use HH instead of hh for the hours: >> datetime.setDefaultFormats('default','hh:mm:ss yyyy-MM-dd') >> t = datetime(2019,8,10,...

6 years ago | 8

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Answered
How to read a file containing non numerical characters and commas?
The 22 lines of text are easily dealt with using the 'HeaderLines' option. Next you must convert your strings to doubles. Below...

6 years ago | 0

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Answered
Cell Array Dynamic Size
If you are happy with storing the data as a matrix for each sheet : filename = 'Q.xlsx'; n_sheets = 2; DP = cell(1,n_sheets);...

6 years ago | 0

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Solved

Fill the matrix - 1
Input is a column vector and n. n columns will be added to the left of the input column. The first value of the row is the s...

6 years ago

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I have IgorTime data in which time:units = "seconds since 1904-01-01". I would like to convert this seconds to datevc.
First: Are you sure your T vector is in seconds? If so, your time list covers about 48 milliseconds around 01-Jan-1904 11:41:29....

6 years ago | 1

Solved

Find the Final State of an Abelian Sandpile
Let us define an <http://nautil.us/issue/23/dominoes/the-amazing-autotuning-sandpile Abelian sand pile> as a matrix that is only...

6 years ago

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Data Regularization
Provided is an m-by-n integer data matrix A whose elements are drawn arbitrarily from a set *S* = [1,2,3,...,S] for any large in...

6 years ago

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Divide elements by sum of elements
In this problem, I ask you to write a function which will divide the elements of each column by the sum of the elements of the s...

6 years ago

Answered
How to add headers to Excel.
filename = 'testdata.xlsx'; header = {'name', 'Age'}; A = [12.7;5.02;-98;63.9;0;-.2;56]; B= [12.7;5.02;-98;63.9;0;-.2;56]; c...

6 years ago | 1

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Answered
Plot multivariable function,can't get the plot right ?
The main problem with your plot is simply that the large values of f for y > 0.5 dwarf the variations at lower values. Changing...

6 years ago | 1

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