The phrase "at a singular point" is correct and usable in written English.
It can be used in contexts where you want to refer to a specific, unique location or moment in time.
Example: "The research focuses on the behavior of the system at a singular point in its evolution."
Alternatives: "at a unique point" or "at a specific point".
Except at a singular point in the infinitely remote past and possibly in the distant future.
These lines merge at a singular point characterized by two vanishing eigenvalues.
Thus in this study, we apply the back-stepping design to a bioreactor system by introducing a simple parameter into the design techniques to prevent the control system from operating at a singular point.
As distinct from corner or cuspidal points, the angle need not possess finite one-sided limits at a singular point and may, in general, undergo discontinuities of the second kind.
And the tapes capture Jacqueline Kennedy at a singular point in her own life and for women in general.
Moreover, special attention is paid to the construction of propeller blades with a well-defined tangent plane at the tip, which is a singular point of the blade boundary surfaces.
Dehghan and Shakeri [15] were first to apply exponential transformation to the Lane-Emden equation in order to address the difficulty of a singular point at x = 0 and solve the resulting nonsingular problem using the variational iteration method.
The hypersurface (G = 1) is a generalization of a hypercone (P = 1) with a singular point (the vertex) at the origin.
Indeed, when Darwin "became" a transmutationist is impossible to tell if there was really such a singular point in time at all.
One of the most classical problems in the qualitative theory of planar analytic differential systems is to characterize the local phase portrait at an isolated singular point.
Evolutionary branching is predicted to occur at an evolutionarily singular point that is approaching stable (or convergence stable, CS) but not evolutionarily stable (ES), and it is actually observed in individual-based simulations in many models for the evolution of ecological traits.
