valid function

USAGE SUMMARY

The phrase "valid function" is correct and usable in written English.
It can be used in contexts related to mathematics, programming, or logic to describe a function that meets certain criteria or is acceptable within a given framework. Example: "In this programming language, a valid function must have a defined return type and parameters."

✓ Grammatically correct

Robotics and Biomimetics

Huffington Post

Vice

The Guardian - Money

The Guardian - Books

EURASIP Journal on Advances in Signal Processing

Boundary Value Problems

Journal of Statistical Distributions and Applications

BMC Systems Biology

The New York Times - Magazine

Computers & Geosciences

Structural Safety

Journal of Cheminformatics

Bioinformatics

BMJ Open

Biomedical Optics Express

BMC Pulmonary Medicine

Chemistry Central Journal

Advances in Difference Equations

The Guardian

Journal of Inequalities and Applications

BMC Plant Biology

Arthritis Research and Therapy

Psychiatry Research

Chemical Engineering Science

Journal of the Franklin Institute

Journal of Theoretical and Applied Physics

Latin American Economic Review

Applied Ocean Research

Applied Developmental Science

Applied Energy

BMC Evolutionary Biology

Human-verified examples from authoritative sources

Exact Expressions

4 human-written examples

This results in a one-to-many mapping which is not a valid function, eliminating any regression technique which directly learns a non-linear function.

Robotics and Biomimetics

That's not a valid function of government?

Huffington Post

They serve a valid function and allow for lower income workers to receive a better income.

Vice

If natural disaster warning isn't a valid function of government, then why should all of our tax dollars pay to warn places like New Orleans of impending disaster?

Huffington Post

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

Wheatley described the consumer credit market as a very broad sector, "and many of the firms perform very valid functions".

The Guardian - Money

They are valid functioning members of society, and much of the prejudice is gone, or so we'd like to think.

The Guardian - Books

A valid test function, η t (z,d), is any function that fulfills all of the following properties: 1. (eta _{t} z,d): mathcal {X}times mathbb {R}^rightarrow [0,1]).

EURASIP Journal on Advances in Signal Processing

Suppose that the part (a) of Theorem 2.1 is valid and function belongs to the class Then for arbitrary such estimate holds: (213).

Boundary Value Problems

Note that, in order for (36) to be a valid survival function, it must be the case that x1/γh(x) is a non-decreasing function of x.

Journal of Statistical Distributions and Applications

This mapping is accomplished, as previously stated, by using a valid kernel function.

BMC Systems Biology

Networks serve a valid research function, but the potential for experts to cross the line into illegal tipping is plain.

The New York Times - Magazine

Expert writing Tips

Best practice

When describing code or systems, specify the criteria that make a "valid function" so others understand your requirements.

Common error

Avoid assuming that all readers share your understanding of what constitutes a "valid function". Always contextualize the criteria for validity.

Linguistic Context

The phrase "valid function" serves as a descriptive term. The adjective "valid" modifies the noun "function", indicating that the function meets certain established criteria or requirements, as validated by Ludwig.

Expression frequency: Rare

Frequent in

Science

70%

News & Media

15%

Formal & Business

10%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "valid function" describes a function that meets specific requirements within a given context. Ludwig AI confirms its grammatical correctness and utility, particularly in academic or technical contexts. While "valid function" appears infrequently, as illustrated by the examples provided by Ludwig, it accurately conveys the idea of a function's acceptability or correctness. Using related phrases like "legitimate function" can provide alternative ways to express this concept. When using the term, ensure you define the criteria that make a function valid to avoid ambiguity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

legitimate function

Replaces "valid" with a synonym emphasizing lawfulness or acceptability.

acceptable function

Focuses on whether the function meets minimum requirements or standards.

sound function

Indicates the function is reliable and well-founded.

proper function

Highlights that the function operates correctly according to established rules or procedures.

correct function

Emphasizes accuracy and precision in the function's operation.

verified function

Implies that the function's validity has been confirmed through testing or analysis.

certified function

Suggests the function meets certain external standards or certifications.

operative function

Stresses the function's active and effective operation.

functional operation

Switches from adjective-noun to noun-adjective order to highlight its operation.

working function

Informal, emphasizing that the function performs as intended.

FAQs

How do you define a "valid function" in mathematics?

In mathematics, a "valid function" typically refers to a relation where each input has only one output. It must pass the vertical line test. The term can have specific meaning based on the function's context.

What makes a function "valid" in computer programming?

In programming, a "valid function" is one that executes without errors, returns the expected output for a given input, adheres to the defined syntax, and achieves its intended purpose. Consider alternatives like "legitimate function" or "correct function".

Can "valid function" be used in contexts outside of math and programming?

Yes, "valid function" can apply more broadly to describe something that effectively fulfills its intended role or purpose in various contexts. Its validity depends on adhering to certain established guidelines or requirements in the given system. Consider an "acceptable function".

What's the difference between a "valid function" and an "invalid function"?

A "valid function" operates correctly and produces the desired results, while an "invalid function" fails to meet the necessary criteria or specifications, leading to errors or incorrect outcomes. Think of a "proper function" and its opposite.