1. Darling, you are my induced formula. Without you, I will never be flexible.
2, Dear, I am sin, you are cos. without you, tan has no meaning.
3. Honey, you are my coordinate system. Without you, I can never find my place.
4. Honey, you are the center of my circle. Without you, I will always form a perfect closed curve.
5. Darling, you are my element. Without you, my set will always be just an empty set.
6. Darling, you are my algorithm. Without you, I can never find my value.
7. Darling, you are my linear regression equation. Without you, I will always be just some lost loose ends with no backbone.
8, dear, you are my monotonous increasing function. With you, my happiness is better than one day.
9, darling, you are my generalized formula. Without you, I can never recognize myself.
10, darling, you are A, I am X. Without you, the Xth power of A can never be greater than zero.
11, my dear, you are my domain of definition. Without you, the existence of my function is meaningless.
12. Darling, you are my axis of symmetry. Without you, I will never find my other half.
13, darling, you are my sufficiency. Without you, I can't be pushed. Without me, I can't push you. Therefore, the two of us depend on each other!