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11-2. Trigonometric functions

Introduces arithmetic functions related to trigonometric functions.

【FIXED slSin ( ANGLE angs ) ;】

Returns the sine value for the specified angle (ANGLE type).

【FIXED slCos ( ANGLE angc ) ;】

Returns the cosine value for the specified angle (ANGLE type).

【FIXED slTan ( ANGLE angt ) ;】

Returns the tangent value for the specified angle (ANGLE type).

Figure 11-1 Trigonometric image

[ANGLE slAtan (FIXED tx, FIXED ty);]

Returns the angle in the specified direction.

Figure 11-2 “slAtan” image

This section introduces special arithmetic functions.

[FIXED slCalcPoint (FIXED cx, FIXED cy, FIXED cz, FIXED * ret);]

Multiplies the specified points in the current matrix and assigns the calculation result to the parameter “ret”.

[FIXED slInnerProduct (VECTOR a, VECTOR b);]

Takes the dot product of the vector between the specified parameters.
The return value shown in Figure 11-3 is returned.

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