(PECL trader >= 0.2.0) Vector Trigonometric ATan array trader_atan ( array $real ) Calculates the arc tangent for each value in real and returns the resulting array. Parameters: real Array of real values. Returns: Returns an array with calculated data or false on failure.

(PECL trader >= 0.2.0) Vector Trigonometric ASin array trader_asin ( array $real ) Calculates the arc sine for each value in real and returns the resulting array. Parameters: real Array of real values. Returns: Returns an array with calculated data or false on failure.

(PECL trader >= 0.2.0) Aroon Oscillator array trader_aroonosc ( array $high, array $low [, integer $timePeriod ] ) Parameters: high High price, array of real values. low Low price, array of real values. timePeriod Number of period. Valid range from 2 to 100000. Returns: Retur

(PECL trader >= 0.2.0) Aroon array trader_aroon ( array $high, array $low [, integer $timePeriod ] ) Parameters: high High price, array of real values. low Low price, array of real values. timePeriod Number of period. Valid range from 2 to 100000. Returns: Returns an array wi

(PECL trader >= 0.2.0) Absolute Price Oscillator array trader_apo ( array $real [, integer $fastPeriod [, integer $slowPeriod [, integer $mAType ]]] ) Parameters: real Array of real values. fastPeriod Number of period for the fast MA. Valid range from 2 to 100000. slowPeriod Number of period for the

(PECL trader >= 0.2.0) Average Directional Movement Index Rating array trader_adxr ( array $high, array $low, array $close [, integer $timePeriod ] ) Parameters: high High price, array of real values. low Low price, array of real values. close Closing price, array of real values.

(PECL trader >= 0.2.0) Average Directional Movement Index array trader_adx ( array $high, array $low, array $close [, integer $timePeriod ] ) Parameters: high High price, array of real values. low Low price, array of real values. close Closing price, array of real values. timeP

(PECL trader >= 0.2.0) Chaikin A/D Oscillator array trader_adosc ( array $high, array $low, array $close, array $volume [, integer $fastPeriod [, integer $slowPeriod ]] ) Parameters: high High price, array of real values. low Low price, array of real values. close Closing price, array of real values.

(PECL trader >= 0.2.0) Vector Arithmetic Add array trader_add ( array $real0, array $real1 ) Calculates the vector addition of real0 to real1 and returns the resulting vector. Parameters: real0 Array of real values. real1 Array of real values. Returns: Returns an array with calculated data or false on failure

(PECL trader >= 0.2.0) Chaikin A/D Line array trader_ad ( array $high, array $low, array $close, array $volume ) Parameters: high High price, array of real values. low Low price, array of real values. close Closing price, array of real values. volume Volume traded,