src/projCode/Laea.php
public function authset($es) {
        #$t;
        $APA = array();
        $APA[0] = $es * $this->P00;
        $t = $es * $es;
        $APA[0] += $t * $this->P01;
        $APA[1] = $t * $this->P10;
        $t *= $es;
        $APA[0] += $t * $this->P02;
        $APA[1] += $t * $this->P11;
        $APA[2] = $t * $this->P20;

        return $APA;
    }
public function authset($es) {
        #$t;
        $APA = array();
        $APA[0] = $es * $this->P00;
        $t = $es * $es;
        $APA[0] += $t * $this->P01;
        $APA[1] = $t * $this->P10;
        $t *= $es;
        $APA[0] += $t * $this->P02;
        $APA[1] += $t * $this->P11;
        $APA[2] = $t * $this->P20;

        return $APA;
    }
public function authset ( $ es ) { #$t; $ APA = array ( ) ; $ APA [ 0 ] = $ es * $ this -> P00 ; $ t = $ es * $ es ; $ APA [ 0 ] += $ t * $ this -> P01 ; $ APA [ 1 ] = $ t * $ this -> P10 ; $ t *= $ es ; $ APA [ 0 ] += $ t * $ this -> P02 ; $ APA [ 1 ] += $ t * $ this -> P11 ; $ APA [ 2 ] = $ t * $ this -> P20 ; return $ APA ; }
determine latitude from authalic latitude

@param float $es
@return float
determine latitude from authalic latitude