public static function checkType($o)
{
if (strlen($o) == 1) {
if (is_integer($o)) {
$html = '<mn>' . $o . '</mn>';
} elseif (is_string($o)) {
if (\math\internal\funcs::containsSign($o)) {
$html = '<mo>' . $o . '</mo>';
} else {
$html = '<mi>' . $o . '</mi>';
}
} else {
$html = $o;
}
return $html;
} else {
return $o;
}
}
/**
* Renders a cross product
*
* @param object $obj mathPHP object
* @return string html sourcecode
*/
public static function rendercross($obj)
{
if (!is_object($obj->getSourceCode()["veca"])) {
$veca = math::vector($obj->getSourceCode()["veca"]);
} else {
$veca = $obj->getSourceCode()["veca"];
}
if (!is_object($obj->getSourceCode()["vecb"])) {
$vecb = math::vector($obj->getSourceCode()["vecb"]);
} else {
$vecb = $obj->getSourceCode()["vecb"];
}
$veca->setIsRenderingstarted();
$vecb->setIsRenderingstarted();
if (is_string($veca->getContent()["name"]) && !empty($veca->getContent()["name"]) && !empty($vecb->getContent()["name"]) && is_string($vecb->getContent()["name"])) {
$q = render::objectToSourececode($veca->getSourceCode()["name"], "vec") . render::objectToSourececode("", "cross") . render::objectToSourececode($vecb->getSourceCode()["name"], "vec") . render::objectToSourececode("", "eqq");
} else {
$q = "";
}
$veca->setSourceCode(false, "name");
$vecb->setSourceCode(false, "name");
$q .= render::objectToSourececode($veca, "vector") . render::objectToSourececode("", "cross") . render::objectToSourececode($vecb, "vector") . render::objectToSourececode("", "eqq") . render::doRendering([internal\funcs::kreuzProductAusrechnen($veca, $vecb)]);
return $q;
}
