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#ifndef _Calculator_h_INCLUDED_
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#define _Calculator_h_INCLUDED_
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typedef struct _Calculator * Calculator;
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#define CALCULATOR_DEFAULT_DEGREE 360
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Calculator Calculator_Create(int degree_number);
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Calculator Calculator_Destroy(Calculator cal);
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double Calculator_GetSin(Calculator cal, int degree);
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double Calculator_GetCos(Calculator cal, int degree);
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/*****************************************************************************/
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/*****************************************************************************/