What is this power function doing?

I was wondering if someone could explain to me what the function power was actually doing. I know that power is tied to mlmif.h

return power(10,PD/10); PD is an mwArray.

[Adam]

It is hard to guess what an arbitrary function in (I assume) C++ is doing.

I assume it calculates 10 to the power of PD/10 and returns an array of the results, but that is just a guess from its name.

[Peter Piper]

Yes, this is c++ and this is the power function if that helps

inline mwArray power(const mwArray &in1=mwArray::DIN, const mwArray &in2=mwArray::DIN)
{
  int nrhs = 0;
  int nlhs = 1;
  MatlabMatrix *plhs[1];
  plhs[0] = NULL;
  MatlabMatrix *prhs[2];
  if (!in1.IsDIN()) {
    prhs[nrhs++] = in1.GetData();
    if (!in2.IsDIN()) {
      prhs[nrhs++] = in2.GetData();
    }
  }
  mlxPower(nlhs, plhs, nrhs, prhs);
  return plhs[0];
}

I am not sure what mlxPower is doing either however know that it takes...

extern void mlxPower(int nlhs, mxArray *plhs[], int nrhs, mxArray *prhs[]);

which is in the libmatlbm.h

[Adam]

Can you not work it out from the results given the assumption that the most likely thing it is doing is what myself and Thorsten have suggested. You can easily calculate this in Matlab and compare.

Answer 1

[Thorsten]

I guess it computes 10.^(PD/10).