_calculateFormulaValue($formula); self::assertEquals($expectedResult, $result); } public function providerIfErrorArray(): array { return [ 'vector' => [ [[2.5, 6]], '{5/2, 5/0}', 'MAX(ABS({-2,4,-6}))', ], 'return value' => [ [[2.5, [[2, 3, 4]]]], '{5/2, 5/0}', '{2,3,4}', ], ]; } }