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Troubles assigning colorbar values in a bivariate histogram plot
Hi Mar, I have been looking at this with some data I made up, but now that you posted it I was able to plug it in. I thought y...

mehr als 6 Jahre vor | 1

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What to use instead of simple function?
Hi Liliana, 1/(2*pi^(1/2)*(1/(4*a^2))^(1/2)) may not be pretty, but it does equal a/sqrt(pi) so it is mathematically correct....

mehr als 6 Jahre vor | 0

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a Simple Matrix question
Hello LC Matrix_C = matrix_A; Matrix_C(matrix_A == Matrix_B) = 255;

mehr als 6 Jahre vor | 1

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How can I get more than 49 digits of pi in a string?
Hi India, vpa(pi,100) for example (although you need the symbolic toolbox for vpa) And see Walter's comment below. The answer...

mehr als 6 Jahre vor | 1

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plot polygon function error
Hi msh, the reason is pretty simple. You are asking for an output from the function, but you have not provided any in its defi...

mehr als 6 Jahre vor | 0

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why the legend show wrong lines ?
Hi tomer, try replacing plot(t,43*(19.6e-3)/(100*15e-3),' black '); %% plot--> of boundery limit with plot(t,43*(19.6e-3)/(...

mehr als 6 Jahre vor | 0

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Solving 3 Simultaneous Exponential Equations
HI Rory, just for completeness y1 = 159.2543; y2 = 117.2699; y3 = 63.8384; x1 = 291.15; x2 = 293.15; x3 = 299.15; A1 =...

mehr als 6 Jahre vor | 1

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solve on vector equation
Hi Michiel, The unit vector N has to lie in the plane defined by s1 and s2. The result for any s1,s2 is N = s2 - (n1/n2)*s1;...

mehr als 6 Jahre vor | 0

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how can I creat a matrix of all possible combinations of zero and ones across eight digits.
HI Yonatan, not a black box: function a = x10(ndigits) a = ['0';'1']; count = 1; while count < ndigits n = size(...

mehr als 6 Jahre vor | 0

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IFFT of Convolution equivalence
Hi JOB/Ridwan Here is a small example where a and b are padded with zeros, so that regular convolution can be compared with con...

mehr als 6 Jahre vor | 1

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Why 999^999-999^999 is NaN?
HI Fahmy, >> realmax ans = 1.7977e+308 That's the largest floating point number in Mallab, which uses IEEE754 64 bit double ...

mehr als 6 Jahre vor | 0

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How to obtain CDF from the below PDF function
Hello Manesf, This pdf seems related to the Weibull distribution. I made some abrreviations Etta_d = xid Etta_D = xiD ...

mehr als 6 Jahre vor | 1

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In the matlab page of Associated Legendre Polynomials, is the example for the spherical harmonics correct?
Hi chaitanya, Good catch. Really good catch. In addition to the signs of the lobes, I believe that Matlab's Y32 is functional...

mehr als 6 Jahre vor | 2

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How to plot the velocity of a crate on a ramp for different angles?
Hi Kiera, The plot above shows the velocity of the box at the top of the ramp getting larger as the angle of the ramp gets stee...

mehr als 6 Jahre vor | 0

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associated legendre functions matlab
Hi chaitanya, It's apples and oranges. When the domain of the argument is -1 <= x <= 1, the function is -sqrt(1-x^2). That's ...

mehr als 6 Jahre vor | 0

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Implementing a sum with summands of unequal spacing inside an integral
Hi Richard, I don't claim to be a professional although I did use Matlab at work, and here is how I would do this. The main th...

mehr als 6 Jahre vor | 1

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Does the permute function have a bug?
Hello ZY, see 'help permute'. Permute puts the dimensions in the order listed, so in this case the old 4th dimension goes firs...

mehr als 6 Jahre vor | 0

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Is it possible to create periodic boundary conditions for a matrix with linear indexing?
Hi Tom, mod(k,N)+1 for the raised index, k+1 mod(k-2,N)+1 for the lowered index, k-1 and these do give the correct vector of ...

mehr als 6 Jahre vor | 1

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how to solve the equation: xdot=AX+Bu; where u=sin(2t)
Hi Ebraheem, ode45 is fine with explicit time dependence in the calculation of xdot: [t, x] = ode45(@smc5,[0, 10],[1, -2]) pl...

mehr als 6 Jahre vor | 2

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Series expansion with Legendre polynomials
HI James, I won't address how one might print the result, but the mistake in the algrbra is that you should use y(i) = ((2*i+1...

mehr als 6 Jahre vor | 1

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Chua Oszillator in Matlab, Chaos
Hi Albin, In your second version, the equation for xdot is dimensionally incorrect. Changing it to xdot = (1/C1)*(G*(y-x-g));...

mehr als 6 Jahre vor | 0

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Meshing a complex function with limits
Hello Haider, for someone who is new to Matlab you are doing well. You just need a couple of changes. First, you forgot that r...

mehr als 6 Jahre vor | 1

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plot Gibbs phenomenon individually???
Hi Neptune, I agree that my comment on what the Gibbs phenomenon actually is was not very helpful to the actual problem at hand...

mehr als 6 Jahre vor | 0

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Automatic Complex Conjugate in ftt
Hello Ha Oe the quote command is not just the transpose, it's the complex conjugate transpose (Hermetian conjugate). For the s...

mehr als 6 Jahre vor | 1

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The input signal is complex conjugate, but the IFFT output is complex!
Hello yz, The problem is that to produce a real ifft, the first element of Ax, which is the f=0 term, has to be real since that...

mehr als 6 Jahre vor | 1

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Why is dsolve returning an arbitrary constant?
Hi David, you need slightly different syntax. syms y(t) g L c Dy = diff(y) S = dsolve(diff(diff(y(t))) -L*y - g == 0, y(0) =...

mehr als 6 Jahre vor | 0

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How to plot a maximum value on an existing line graph
Hi Grace, Here is an example of what I think you are looking for. The idea is to use the second output of max to find the inde...

mehr als 6 Jahre vor | 1

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Matlab output is not matching with the mathematics...
Hi Hari, the problem is that 2*pi*f*t is a nice linear function of t for all t, but the output of acos is restricted to the ran...

mehr als 6 Jahre vor | 1

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Non Linear DE solving using ODE45
Hi Muhammad, with that set of constants, the time has not been run out far enough to see the final result. Try changing the ti...

mehr als 6 Jahre vor | 0

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ODE45 calculating the total energy in the system and checking the solver
Hi Kostas, The problem is in the calculation of the dissipated energy which is not any kind of sum of (y C dy/dt), but rather t...

mehr als 6 Jahre vor | 0

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