我尝试从Python调用MATLAB的scatteredInterpolant对象的示例。例如，从Python代码中用MATLAB中的给定值插值两个点可以如下所示：

import matlab.engine
eng=matlab.engine.start_matlab()
a=matlab.double([[1,2],[4,5]])
b=eng.scatteredInterpolant(a,matlab.double([[1],[2]]),'linear')

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然而，当我调用b时，我遇到了错误：

c=eng.b(matlab.double([1,2]))
Unrecognized function or variable 'b'.

---------------------------------------------------------------------------
MatlabExecutionError                      Traceback (most recent call last)
Cell In[17], line 1
----> 1 c=eng.b(matlab.double([1,2]))

File ~/miniconda3/lib/python3.11/site-packages/matlab/engine/matlabengine.py:71, in MatlabFunc.__call__(self, *args, **kwargs)
     68     return FutureResult(self._engine(), future, nargs, _stdout, _stderr, feval=True)
     69 else:
     70     return FutureResult(self._engine(), future, nargs, _stdout,
---> 71                         _stderr, feval=True).result()

File ~/miniconda3/lib/python3.11/site-packages/matlab/engine/futureresult.py:67, in FutureResult.result(self, timeout)
     64     if timeout < 0:
     65         raise TypeError(pythonengine.getMessage('TimeoutCannotBeNegative'))
---> 67 return self.__future.result(timeout)

File ~/miniconda3/lib/python3.11/site-packages/matlab/engine/fevalfuture.py:82, in FevalFuture.result(self, timeout)
     79 if not result_ready:
     80     raise TimeoutError(pythonengine.getMessage('MatlabFunctionTimeout'))
---> 82 self._result = pythonengine.getFEvalResult(self._future,self._nargout, None, out=self._out, err=self._err)
     83 self._retrieved = True
     84 return self._result

MatlabExecutionError: Undefined function 'b' for input arguments of type 'double'.

型
或

c=b(matlab.double([1,2]))
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[18], line 1
----> 1 c=b(matlab.double([1,2]))

TypeError: 'matlab.object' object is not callable

型
我该如何解决这个问题？