${\psi }_0(\overrightarrow{\Xi })=1$	${\psi }_1(\overrightarrow{\Xi })={\xi }_1$	${\psi }_3(\overrightarrow{\Xi })={\xi }_1^2-1$	${\psi }_6(\xi )={\xi }_1^3-3{\xi }_1$	${\psi }_{10}(\overrightarrow{\Xi })={\xi }_1^4-6{\xi }_1^2+3$
	${\psi }_2(\overrightarrow{\xi })={\xi }_2$	${\psi }_4(\overrightarrow{\Xi })={\xi }_1{\xi }_2$	${\psi }_7(\xi )={\xi }_1^2{\xi }_2-{\xi }_2$	${\psi }_{11}(\overrightarrow{\Xi })={\xi }_1^3{\xi }_2-3{\xi }_1{\xi }_2$
		${\psi }_5(\overrightarrow{\Xi })={\xi }_2^2-1$	${\psi }_8(\xi )={\xi }_2^2{\xi }_1-{\xi }_1$	${\psi }_{12}(\overrightarrow{\Xi })={\xi }_1^2{\xi }_2^2-{\xi }_1^2-{\xi }_2^2+1$
			${\psi }_9(\xi )={\xi }_2^3-3{\xi }_2$	${\psi }_{13}(\overrightarrow{\Xi })={\xi }_2^3{\xi }_1-3{\xi }_2{\xi }_1$
				${\psi }_{14}(\overrightarrow{\Xi })={\xi }_2^4-6{\xi }_2^2+3$