Functions of more than one variable nomenclature

The function f(x) only involves x, while y(x) can involve any combination of x and y. Therefore, they are not necessarily equal. In summary, the differential equation y' = f(x, y) involves two variables while y = y(x) only involves one, and they are not necessarily equal.
  • #1
Calpalned
297
6

Homework Statement


upload_2015-10-20_19-48-36.png


Homework Equations


n/a

The Attempt at a Solution


##y'=f(x.y)## is a function of two variables. ##y=y(x)## is a function of only one variable. How can they be related? Clearly ##y(x) = f(x) \neq f(x,y)##
Thanks
 
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  • #2
Perhaps ##f(x) \neq y(x)##
 
  • #3
Calpalned said:

Homework Statement


View attachment 90522

Homework Equations


n/a

The Attempt at a Solution


##y'=f(x.y)## is a function of two variables. ##y=y(x)## is a function of only one variable. How can they be related? Clearly ##y(x) = f(x) \neq f(x,y)##
Thanks
The right side of the differential equation y' = f(x, y) involves expressions in both x and y. For example, something like y' = 2x + 3y. Here f is a function that maps a pair of numbers (x, y) to 2x + 3y.

We generally assume that y is related to x in some way.
Calpalned said:
Perhaps ##f(x) \neq y(x)##
Correct.
 

1. What is "Functions of more than one variable nomenclature"?

"Functions of more than one variable nomenclature" is a term used in mathematics to describe functions that have more than one input variable. These functions are commonly used in fields such as physics, engineering, and economics to model complex systems.

2. How are "Functions of more than one variable nomenclature" different from single variable functions?

Single variable functions have only one input variable, while "Functions of more than one variable nomenclature" have multiple input variables. This allows for a more comprehensive representation of real-world situations where multiple factors may affect the outcome of a function.

3. What are some common examples of "Functions of more than one variable nomenclature"?

Some common examples of "Functions of more than one variable nomenclature" include multivariable calculus functions, such as the gradient, divergence, and curl of a vector field. These functions are used to study the behavior of systems in three-dimensional space.

4. How are "Functions of more than one variable nomenclature" used in scientific research?

"Functions of more than one variable nomenclature" are commonly used in scientific research to model and analyze complex systems. They allow scientists to understand the relationships between multiple variables and how they affect the outcome of a function. This can help in predicting and controlling the behavior of these systems.

5. What are some challenges in working with "Functions of more than one variable nomenclature"?

One of the main challenges in working with "Functions of more than one variable nomenclature" is visualizing and graphing these functions, as they often involve three or more dimensions. Another challenge is understanding and interpreting the results of these functions, as they can be more complex and difficult to analyze compared to single variable functions.

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