Arc-cosine function. It takes one numeric operand.
Arc-sine function. It takes one numeric operand.
Arc-tangent function. It takes one numeric operand.
Cosine function. It takes one numeric operand.
Cotangent function. It takes one numeric operand.
Cosecant function. It takes one numeric operand.
Secant. It takes one numeric operand.
Sine. It takes one numeric operand.
Tangent. It takes one numeric operand.