[DirectX October 2006 Documentation] D3DXToDegree (89%)

DirectX Graphics > Direct3D 9 > Reference > D3DX Reference > Macros

[DirectX 7 Programmer's Reference] D3DXToDegree (65.8986175115207%)

Microsoft DirectX 7.0 > Direct3D > Direct3DX Utility Library [C++] > Direct3DX Utility Library Reference > Macros