[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)(Meta=(DisplayName="Acos", TemplateName="Acos", Keywords="Arccos")) struct FRigVMFunction_MathDoubleAcos : public [FRigVMFunction_MathDoubleUnaryOp](API\Plugins\RigVM\RigVMFunctions\Math\FRigVMFunction_MathDoubleUnaryOp)