A peak may pertain-to a (torque curve).Logical formLearned from3 sentences. A curve can be for an economy.Logical formLearned from3 sentences. A curve may be estimated.Logical formLearned from3 sentences. A result of a curve can be that something-is-the-case.Logical formLearned from3 sentences. A (demand curve) can be downward-sloping.Logical formLearned from3 sentences. An algebraic curve can be a surface.Logical formLearned from3 sentences. A domain may pertain-to a curve.Logical formLearned from3 sentences. A parabola can be a curve.Logical formLearned from3 sentences. Tangent can be to a (cost curve).Logical formLearned from3 sentences. A (piston engine) may have a (power curve).Logical formLearned from3 sentences. (Curve hulls) can be smooth.Logical formLearned from3 sentences. A curve can be non-singular.Logical formLearned from3 sentences. An elliptic curve can be (plane curve).Logical formLearned from3 sentences. Curves may undergo approximations.Logical formLearned from3 sentences. Curves can be linked.Logical formLearned from3 sentences.