/* * function y=myminus(a,b) */ static mxArray * Mmyminus(int nargout_, mxArray * a, mxArray * b) { mexLocalFunctionTable save_local_function_table_ = mclSetCurrentLocalFunctionTable(&_local_function_table_myminus); mxArray * y = NULL; mxArray * ans = NULL; mclCopyArray(&a); mclCopyArray(&b); /* * y=a-b; */ mlfAssign(&y, mclMinus(mclVa(a, "a"), mclVa(b, "b"))); /* * format rat; */ mlfFormat(_mxarray0_, NULL); /* * y=rats(y); */ mlfAssign(&y, mlfRats(mclVv(y, "y"), NULL)); mclValidateOutput(y, 1, nargout_, "y", "myminus"); mxDestroyArray(ans); mxDestroyArray(b); mxDestroyArray(a); mclSetCurrentLocalFunctionTable(save_local_function_table_); return y; }
/* * function r = rank(A,tol) */ static mxArray * Mrank(int nargout_, mxArray * A, mxArray * tol) { mexLocalFunctionTable save_local_function_table_ = mclSetCurrentLocalFunctionTable(&_local_function_table_rank); int nargin_ = mclNargin(2, A, tol, NULL); mxArray * r = mclGetUninitializedArray(); mxArray * s = mclGetUninitializedArray(); mclCopyArray(&A); mclCopyArray(&tol); /* * %RANK Matrix rank. * % RANK(A) provides an estimate of the number of linearly * % independent rows or columns of a matrix A. * % RANK(A,tol) is the number of singular values of A * % that are larger than tol. * % RANK(A) uses the default tol = max(size(A)) * norm(A) * eps. * * % Copyright 1984-2001 The MathWorks, Inc. * % $Revision: 5.10 $ $Date: 2001/04/15 12:01:33 $ * * s = svd(A); */ mlfAssign(&s, mlfSvd(NULL, NULL, mclVa(A, "A"), NULL)); /* * if nargin==1 */ if (nargin_ == 1) { /* * tol = max(size(A)') * max(s) * eps; */ mlfAssign( &tol, mclMtimes( mclMtimes( mclVe( mlfMax( NULL, mlfCtranspose( mclVe(mlfSize(mclValueVarargout(), mclVa(A, "A"), NULL))), NULL, NULL)), mclVe(mlfMax(NULL, mclVv(s, "s"), NULL, NULL))), _mxarray4_)); /* * end */ } /* * r = sum(s > tol); */ mlfAssign(&r, mlfSum(mclGt(mclVv(s, "s"), mclVa(tol, "tol")), NULL)); mclValidateOutput(r, 1, nargout_, "r", "rank"); mxDestroyArray(s); mxDestroyArray(tol); mxDestroyArray(A); mclSetCurrentLocalFunctionTable(save_local_function_table_); return r; }
/* * function out = precise_step(inargs) */ static mxArray * Mprecise_step(int nargout_, mxArray * inargs) { mexLocalFunctionTable save_local_function_table_ = mclSetCurrentLocalFunctionTable(&_local_function_table_precise_step); mxArray * out = mclGetUninitializedArray(); mclCopyArray(&inargs); /* * % precise_step defines precise level for my own bussniss. * % * % out = precise_step * % out always return .001 for current. * * if exist('FORCE_PRECISE_STEP') == 1 */ if (mclEqBool(mclVe(mlfExist(_mxarray4_, NULL)), _mxarray6_)) { /* * out = eval('FORCE_PRECISE_STEP'); */ mlfAssign(&out, mlfEval(mclValueVarargout(), _mxarray4_, NULL)); /* * else */ } else { /* * out = .0009; */ mlfAssign(&out, _mxarray7_); /* * end */ } mclValidateOutput(out, 1, nargout_, "out", "precise_step"); mxDestroyArray(inargs); mclSetCurrentLocalFunctionTable(save_local_function_table_); return out; }
/* * function y=myeye(x) */ static mxArray * Mmyeye(int nargout_, mxArray * x) { mexLocalFunctionTable save_local_function_table_ = mclSetCurrentLocalFunctionTable(&_local_function_table_myeye); mxArray * y = NULL; mclCopyArray(&x); /* * y=eye(x); */ mlfAssign(&y, mlfEye(mclVa(x, "x"), NULL)); mclValidateOutput(y, 1, nargout_, "y", "myeye"); mxDestroyArray(x); mclSetCurrentLocalFunctionTable(save_local_function_table_); return y; }
/* * function r=mrank(n) */ static mxArray * Mmrank(int nargout_, mxArray * n) { mexLocalFunctionTable save_local_function_table_ = mclSetCurrentLocalFunctionTable(&_local_function_table_mrank); mxArray * r = NULL; mxArray * ans = NULL; mxArray * k = NULL; mclCopyArray(&n); /* * r=zeros(n,1); */ mlfAssign(&r, mlfZeros(mclVa(n, "n"), _mxarray0_, NULL)); /* * for k=1:n */ { int v_ = mclForIntStart(1); int e_ = mclForIntEnd(mclVa(n, "n")); if (v_ > e_) { mlfAssign(&k, _mxarray1_); } else { /* * r(k)=my_rank(magic(k)); * end */ for (; ; ) { mclIntArrayAssign1( &r, mlfMy_rank(mlfMagic(mlfScalar(v_)), NULL), v_); if (v_ == e_) { break; } ++v_; } mlfAssign(&k, mlfScalar(v_)); } } /* * r */ mclPrintArray(mclVv(r, "r"), "r"); mclValidateOutput(r, 1, nargout_, "r", "mrank"); mxDestroyArray(k); mxDestroyArray(ans); mxDestroyArray(n); mclSetCurrentLocalFunctionTable(save_local_function_table_); return r; }
/* * function y=myrot(x) */ static mxArray * Mmyrot(int nargout_, mxArray * x) { mexLocalFunctionTable save_local_function_table_ = mclSetCurrentLocalFunctionTable(&_local_function_table_myrot); mxArray * y = NULL; mxArray * ans = NULL; mclCopyArray(&x); /* * y=inv(x); */ mlfAssign(&y, mlfInv(mclVa(x, "x"))); /* * format rat; */ mlfFormat(_mxarray0_, NULL); /* * y=rats(y); */ mlfAssign(&y, mlfRats(mclVv(y, "y"), NULL)); mclValidateOutput(y, 1, nargout_, "y", "myrot"); mxDestroyArray(ans); mxDestroyArray(x); mclSetCurrentLocalFunctionTable(save_local_function_table_); return y; }
/* * function theImage=gasket(numPoints) */ static mxArray * Mgasket(int nargout_, mxArray * numPoints) { mexLocalFunctionTable save_local_function_table_ = mclSetCurrentLocalFunctionTable(&_local_function_table_gasket); mxArray * theImage = NULL; mxArray * i = NULL; mxArray * theRand = NULL; mxArray * startPoint = NULL; mxArray * corners = NULL; mclCopyArray(&numPoints); /* * theImage =zeros(1000,1000); */ mlfAssign(&theImage, mlfZeros(_mxarray0_, _mxarray0_, NULL)); /* * corners=[866 1;1 500;866 1000]; */ mlfAssign(&corners, _mxarray1_); /* * startPoint=[866 1]; */ mlfAssign(&startPoint, _mxarray3_); /* * theRand=rand(numPoints,1); */ mlfAssign( &theRand, mlfNRand(1, mclVa(numPoints, "numPoints"), _mxarray5_, NULL)); /* * theRand=ceil(theRand*3); */ mlfAssign( &theRand, mlfCeil(mclMtimes(mclVv(theRand, "theRand"), _mxarray6_))); /* * for i=1:numPoints */ { int v_ = mclForIntStart(1); int e_ = mclForIntEnd(mclVa(numPoints, "numPoints")); if (v_ > e_) { mlfAssign(&i, _mxarray7_); } else { /* * startPoint=floor((corners(theRand(i),:)+startPoint)/2); * theImage(startPoint(1),startPoint(2))=1; * end */ for (; ; ) { mlfAssign( &startPoint, mlfFloor( mclMrdivide( mclPlus( mclArrayRef2( mclVv(corners, "corners"), mclIntArrayRef1(mclVv(theRand, "theRand"), v_), mlfCreateColonIndex()), mclVv(startPoint, "startPoint")), _mxarray8_))); mclArrayAssign2( &theImage, _mxarray5_, mclIntArrayRef1(mclVv(startPoint, "startPoint"), 1), mclIntArrayRef1(mclVv(startPoint, "startPoint"), 2)); if (v_ == e_) { break; } ++v_; } mlfAssign(&i, mlfScalar(v_)); } } mclValidateOutput(theImage, 1, nargout_, "theImage", "gasket"); mxDestroyArray(corners); mxDestroyArray(startPoint); mxDestroyArray(theRand); mxDestroyArray(i); mxDestroyArray(numPoints); mclSetCurrentLocalFunctionTable(save_local_function_table_); return theImage; }