(PECL trader >= 0.2.0) Vector Arithmetic Subtraction

(PECL trader >= 0.2.2) Set unstable period

(PECL trader >= 0.2.0) Vector Trigonometric Sin

(PECL trader >= 0.2.0) Beta array trader_beta

(PECL trader >= 0.2.0) Plus Directional Movement

(PECL trader >= 0.2.0) Typical Price array

(PECL trader >= 0.2.0) Inverted Hammer array

(PECL trader >= 0.2.0) Hanging Man array

(PECL trader >= 0.2.0) MidPoint over period

(PECL trader >= 0.2.0) Parabolic SAR array