_calculateFormulaValue($formula); self::assertEqualsWithDelta($expectedResult, $result, 1.0e-12); } public function providerDollarDeArray(): array { return [ 'first argument row vector' => [ [[1.125, 2.0625, -12.625, 3.5]], '{1.02, 2.01, -12.1, 1.4}', '16', ], 'first argument column vector' => [ [[1.0625], [2.03125], [-12.3125], [2.25]], '{1.02; 2.01; -12.1; 1.4}', '32', ], 'first argument matrix' => [ [[1.05, 2.25], [-12.5, 2.0]], '{1.02, 2.1; -12.2, 1.4}', '4', ], 'second argument row vector' => [ [[4.25, 3.625, 6.125, 4.5625]], '3.5', '{4, 8, 16, 32}', ], 'second argument column vector' => [ [[5.5], [4.25], [3.625], [6.125]], '3.5', '{2; 4; 8; 16}', ], 'second argument matrix' => [ [[-4.875, -3.9375], [-9.25, -7.6875]], '-3.75', '{4, 8; 12, 16}', ], ]; } }