function testCsc()
 {
     /*{{{*/
     $tmp = Math_ComplexOp::csc($this->cnum1);
     $this->assertEquals('0.928564459614 - 1.38718164764i', $tmp->toString());
 }
echo "log10(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::conjugate($a);
echo "conjugate(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::negative($a);
echo "negative(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::inverse($a);
echo "inverse(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::sin($a);
echo "sin(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::cos($a);
echo "cos(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::tan($a);
echo "tan(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::sec($a);
echo "sec(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::csc($a);
echo "csc(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::cot($a);
echo "cot(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::asin($a);
echo "asin(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::asinAlt($a);
echo "asinAlt(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::asinReal(-0.22);
echo "asinReal(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::acos($a);
echo "acos(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::atan($a);
echo "atan(a) = " . $z->toString() . "\n";
$z = Math_ComplexOp::asec($a);
echo "asec(a) = " . $z->toString() . "\n";