$this->maxDifferences = ceil( ( $this->m + $this->n ) / 2.0 );
if ( $this->m * $this->n > $this->tooLong ) {
// limit complexity to D^POW_LIMIT for long sequences
- $this->maxDifferences = floor( pow( $this->maxDifferences, $this->powLimit - 1.0 ) );
+ $this->maxDifferences = floor( $this->maxDifferences ** ( $this->powLimit - 1.0 ) );
wfDebug( "Limiting max number of differences to $this->maxDifferences\n" );
}