(PECL trader >= 0.2.0)
trader_sub — Vector Arithmetic Subtraction
$real0, array $real1): array
Calculates the vector subtraction of real1 from
real0 and returns the resulting vector.
real0浮點(diǎn)數數組。
real1浮點(diǎn)數數組。
Returns an array with calculated data or false on failure.