/
TrigFunction.cpp
95 lines (85 loc) · 1.44 KB
/
TrigFunction.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
/**
* Title: TrigFunction
* Base class for a mathematical function.
* @author Mary Wyllie
*/
#include "TrigFunction.h"
#include "MathFunction.h"
#include <math.h>
/**
* Class for a trig functions.
*/
/**
* Constructor.
*/
TrigFunction::TrigFunction()
{
}
/**
* Constructor.
* @param oper (input) What operator is used.
*/
TrigFunction::TrigFunction(
TOperatorType function)
{
}
/**
* Destructor.
*/
TrigFunction::~TrigFunction()
{
}
/**
* Virtual function to calculate a point for this fucntion.
* @param x (input) x input value for this function.
* @return Y value corresponding to the x input.
*/
TMathResult
TrigFunction::CalculateY(
double x,
double *y)
{
TMathResult status = MATH_SUCCESS;
double result = 0;
double angle = x;
if(GetAngleMode() == MATH_ANGLES_IN_DEGREES)
{
angle = DegreesToRadians(x);
}
switch(GetOperatorType())
{
case MATH_SIN:
result = sin(angle);
break;
case MATH_COS:
result = cos(angle);
break;
case MATH_TAN:
result = tan(angle);
break;
case MATH_COT:
result = tan(angle);
if(!IsEqual(result, 0))
result = 1/result;
else
status = MATH_UNDEFINED;
break;
case MATH_SEC:
result = cos(angle);
if(!IsEqual(result, 0))
result = 1/result;
else
status = MATH_UNDEFINED;
break;
case MATH_CSC:
result = sin(angle);
if(!IsEqual(result, 0))
result = 1/result;
else
status = MATH_UNDEFINED;
break;
}
if(status == MATH_SUCCESS)
*y = result;
return status;
}