_calculateFormulaValue($formula); self::assertEquals($expectedResult, $result); } public function providerImAbsArray(): array { return [ 'row/column vector' => [ [ [2.692582403567252, 2.5, 2.692582403567252], [1.4142135623730951, 1.0, 1.4142135623730951], [1.4142135623730951, 1.0, 1.4142135623730951], [2.692582403567252, 2.5, 2.692582403567252], ], '{"-1-2.5i", "-2.5i", "1-2.5i"; "-1-i", "-i", "1-i"; "-1+i", "i", "1+1"; "-1+2.5i", "+2.5i", "1+2.5i"}', ], ]; } }