# Mike Hosea

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**Feeds**

Codegen fails with "wrong number of input arguments" while function calls without error

I can't find where this behavior of INTERPN is documented. To the contrary, we have: >> help interpn interpn N-D inte...

ungefär 2 år ago | 0

| accepted

Matlab Coder Error: The output of the ODE function must be a column vector

I have to admit the problem here is pretty hard to diagnose. The problem actually traces back to the definitions of A and B: [...

ungefär 2 år ago | 0

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medfilt1 medifilt2 or movmedian

Long ago there was only medfilt1 and no movmedian. Then there was both. Now medfilt1 calls movmedian. That fact severely limi...

mer än 2 år ago | 1

| accepted

Is there any other way to use coder for accumarray() ?

Not in 18b, I think. Support for accumarray was added in 19a, if memory serves.

ungefär 5 år ago | 1

| accepted

EIG incorrect for large matrices when compiled into C on speedgoat target computer

Bit difficult to debug from here. Is your code calling the initialize and terminate functions for the library you are generatin...

mer än 5 år ago | 0

ERROR: floating constant is out of range

That number is well within the range of IEEE double precision floating point numbers, but the TI TMS320F28379D has native 32bit ...

mer än 5 år ago | 1

| accepted

How can I translate matlab functions to C/C++ void functions using codegen?

The code generator is usually smart enough to detect when computations have no side effects and have no impact on return values....

mer än 5 år ago | 2

| accepted

what is the significance of 3.3121686421112381E-170 ?

Walter is on the right track. What we see above is essentually a loop-unrolled version of the reference BLAS algorithm of DNRM2...

mer än 5 år ago | 2

| accepted

How can compile in C/C++ the lpc funciton ?

Extrinsic calls can work only when the target is mex or one is simulating in Simulink. This is because extrinsic calls are call...

ungefär 6 år ago | 0

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Coder, randsample: Variable 'edges' is not fully defined on some execution paths.

This is a bug in the code generation version of RANDSAMPLE. The compiler is complaining about a situation that it really doesn'...

mer än 6 år ago | 0

| accepted

Multiple calls to interpn using same vectors

Unfortunately, there will be a separate look-up for each call. The only thing I can think of is to find the bounding box yourse...

mer än 6 år ago | 1

| accepted

how use Curve Fitting functions in Matlab coder?

I'm not sure what you need. MATLAB Coder does support the SPLINE, PCHIP, and PPVAL. I don't know that much about what C libr...

mer än 7 år ago | 0

| accepted

Submitted

integralN.m

Compute Multiple Integrals of Orders 4, 5, and 6

ungefär 8 år ago | 14 downloads |

How can I calculate this triple integral when I have a rotated euler matrix. All that is attached in the file,

INTEGRAL3 does not support integrating a matrix of functions. For example, suppose you wanted to integrate f = @(x,y,z)[co...

nästan 9 år ago | 0

Why i have this errors in my triple integral ? change numeric methods ?

Well, theoretically like this: ss=0.6; T=0.1; a = 0.0001; f2 = @(r,b,g) 1./(r.^2.*sqrt(1 - (b./r).^2 - (g^-2)*...

nästan 9 år ago | 0

| accepted

how can I solve a triple integral (x,y,z) with y not defined

Your integrand will be evaluated at an array of points each time (not just with one x, y, and z!), so it must return an array of...

ungefär 9 år ago | 0

Matlab R2015a coder error:Dimension 1 is fixed on the left-hand side but varies on the right ([1024 x 1] ~= [:? x 1]).

Use coder.varsize to create a variable-size copy of the Phi input. Rename the Phi input to something like PhiInput and just bef...

ungefär 9 år ago | 2

| accepted

Generating c++ Code from *.slx

I'm not in sales, so I could be out-of-date in my recollection of how the product catalog is built, but my understanding is that...

mer än 9 år ago | 0

randn() function generates the same sequence whenever I called it.

Every time you start MATLAB it will deliver the same sequence if you don't provide your own seed first. Your generated code mus...

mer än 9 år ago | 1

simulink matlab function block error

You need to tell the compiler what the output of lqr will look like. Kr = zeros(1,2); % Define the output type for the extr...

mer än 9 år ago | 3

| accepted

Run ANY matlab Function.m from simulink simulation

If you just want to run it from Simulink, just call _your_ function as extrinsic. For example if your function is called myfun(...

mer än 9 år ago | 1

| accepted

Matlab Coder : Error using interpolation function interp1(x,y,z,'spline');

This all works fine for me. I just tried it in 15a. INTERP1 doesn't need to do anything fancy to figure out the _size_ of the ...

mer än 9 år ago | 0

Anyone know where to begin truing to solve an nth order integral? (n up to 10)

There's a good reason why there's no integraln function. There's a function called integralN on the file exchange that goes up ...

mer än 9 år ago | 0

How can I shrink the time of getting the results please?

That code never gave you results because it isn't working--there is a syntax error. Specific suggestions are therefore hard to ...

mer än 9 år ago | 0

| accepted

triple integral of parametrized function

Something like this? psf = @(x,y,z)exp(-2*(x.^2+y.^2)-2*z.^2); fun1 = @(k,e,x,y,z)((e.*psf(x,y,z)).^k).*exp(-e.*psf(x,y,...

mer än 9 år ago | 1

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A and B must be floating-point scalars.

>> help integral integral Numerically evaluate integral. Q = integral(FUN,A,B) approximates the integral of functi...

mer än 9 år ago | 0

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Why does integral2 function changes the array size of variable over which integration is performed?

The iterated mode uses adaptive quadrature in each dimension, though your integrand function will, in a sense, be aware of only ...

mer än 9 år ago | 1

| accepted

Inner matrix dimensions must agree.

You wrote I =@(x) U(x)*H(x)*D(x); That is probably not right. The * operator is _matrix_ multiplication. You probably...

mer än 9 år ago | 1

İntegral with array boundaries Need help

I've answered this question in a follow-up comment on the other question. It will work, but you have to debug your code. You w...

mer än 9 år ago | 0

synchronization of matlab function blocks

The MATLAB Function Block can return arrays. The problem with your code is probably just that you can't return the *persistent*...

mer än 9 år ago | 0

| accepted