function of a real variable造句

The inverse Laplace transform takes a function of a complex variable " s " ( often frequency ) and yields a function of a real variable " t " ( time ).
Floor and ceiling functions are examples of an integer-valued function of a real variable, but on real numbers and generally, on ( non-disconnected ) topological spaces integer-valued functions are not especially useful.
The "'derivative "'of a function of a real variable measures the sensitivity to change of a quantity ( a function value or dependent variable ) which is determined by another quantity ( the independent variable ).
As a functions of a real variable, exponential functions are uniquely characterized by the fact that the growth rate of such a function ( i . e ., its derivative ) is directly proportional to the value of the function.
A "'complex-valued function of a real variable "'may be defined by relaxing, in the definition of the real-valued functions, the restriction of the codomain to the real numbers, and allowing complex values.
It's difficult to find function of a real variable in a sentence. 用function of a real variable造句挺难的

The shift operator action on functions of a real variable plays an important role in harmonic analysis, for example, it appears in the definitions of abelian varieties, and the theory of symbolic dynamics, for which the baker's map is an explicit representation.
This is typically the case in sentences like " function of a real variable ", " is the variable of the function ", " is a function of the variable " ( meaning that the argument of the function is referred to by the variable ).
I guess I have no reason for asking other than I like the look of the pictures, and want to see how they compare to the graph of the same function of a real variable . 80.169.64.22 21 : 21, 9 August 2007 ( UTC)
In mathematical analysis, and applications in geometry, applied mathematics, engineering, and natural sciences, a "'function of a real variable "'is a function whose domain is the real numbers !, more specifically the subset of ! for which the function is defined.
If z = x + iy, where x and y are both real, then we could define its exponential as \ exp z = \ exp ( x + iy ) : = ( \ exp x ) ( \ cos y + i \ sin y ), where exp, cos, and sin on the right-hand side of the definition sign are to be interpreted as functions of a real variable, previously defined by other means.

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