a good approximation for

USAGE SUMMARY

The phrase "a good approximation for" is correct and usable in written English.
It can be used when discussing a value or concept that is close to another value or concept, often in mathematical or scientific contexts. Example: "In many cases, the formula provides a good approximation for the actual results we observe in experiments."

✓ Grammatically correct

Science

Academia

News & Media

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Minimizing weighted average delay is a good approximation for MinMax delay optimization.

Integration, the VLSI Journal

So, we can say that a circle is a good approximation for a 1 s wave function.

Massachusetts Institute of Technology

It was his idea to use as a good approximation for the ideal blackbody an oven with a small hole.

Encyclopedia Britannica

It solves the exact solution for concentric cylinders and is a good approximation for the familiar U-tube configuration.

International Journal of Heat and Mass Transfer

The first is to obtain a good approximation for such frontier without enumerating all extreme efficient solutions.

European Journal of Operational Research

Let us assume for simplicity the Moon's orbit as circular (it is not, but this is a good approximation for our purposes).

Cornell University

Because gravity moves planets and stars around at huge distances, and because we see them via electromagnetic waves which travel those huge distances, "infinitely large" seems to be at least a good approximation for both.

The Guardian

The researchers figure that Kappa Ceti, being quite sun-like, could provide a good approximation for the kind of violence our own planet had to endure just as life began.

The Washington Post

In addition, previous videos give Socrate a good approximation for how long it will take to teach something, as well as how the various conceptual modules can be organized.

Massachusetts Institute of Technology

Thus, this is a good approximation for astrophysical jets.

Computational Astrophysics and Cosmology

The first TV angle, which was a good approximation for referee Ricardo Montero's position, was inconclusive.

Forbes

Expert writing Tips

Best practice

When using "a good approximation for", ensure that the context clearly indicates what is being approximated and the degree of accuracy involved. Quantify the approximation when possible to provide a clearer understanding.

Common error

Avoid presenting "a good approximation for" as an exact value. Clearly indicate that it's an approximation and acknowledge any potential limitations or sources of error.

Linguistic Context

The phrase "a good approximation for" functions as a qualifying phrase, indicating that something is nearly correct or close enough to be useful, but not perfectly accurate. Ludwig AI indicates its common usage across diverse contexts.

Expression frequency: Very common

Frequent in

Science

76%

Academia

15%

News & Media

9%

Less common in

Encyclopedias

0%

Formal & Business

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "a good approximation for" is a common and grammatically sound expression used to indicate that something closely resembles or effectively substitutes something else, though not perfectly. Ludwig AI confirms its prevalence across various contexts, particularly in scientific, academic, and news domains.

When using this phrase, be mindful of context and clarity. State the accuracy to ensure the statement is not overstated. Alternatives such as "a reasonable estimate for" or "a fair representation of" can provide nuanced precision.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

an approximate equivalent to

This phrase directly indicates that something is almost equal or similar to something else, but not exactly.

a reasonable estimate for

This alternative focuses on the estimation aspect, implying a calculated guess that is acceptably close to the actual value.

a fair representation of

This phrase suggests that something accurately reflects the characteristics or qualities of something else.

an effective substitute for

This alternative emphasizes the replacement aspect, indicating that something can be used in place of something else without significant loss of functionality or quality.

a close parallel to

This phrase highlights the similarity between two things, suggesting they are closely related or analogous.

a decent model of

This alternative implies that something serves as a satisfactory representation or simulation of something else.

a practical equivalent of

This phrase underscores that something offers a workable alternative that achieves similar results in practice.

a rough analogue to

This alternative suggests that something is similar or comparable but not exactly the same, implying some level of simplification or approximation.

a working definition of

Focuses on the functional aspect, indicating that something is useful for practical purposes even if not perfectly precise.

a serviceable stand-in for

Emphasizes the temporary or provisional nature, suggesting a replacement that is adequate for the moment.

FAQs

How can I use "a good approximation for" in a sentence?

You can use "a good approximation for" to indicate that something is nearly correct or close enough to the actual value or result. For instance, "Using this formula provides a good approximation for the population size".

What's a good alternative to "a good approximation for"?

Alternatives include "a reasonable estimate for", "a fair representation of", or "an effective substitute for", depending on the context.

When is it appropriate to use the phrase "a good approximation for"?

Use "a good approximation for" when you want to convey that something is not exact but is close enough to be useful or informative. This is common in scientific models, statistical analyses, and estimations.

Is there a difference between saying "a good approximation for" and "an exact value"?

Yes, "a good approximation for" implies a degree of inaccuracy, while "an exact value" suggests there is no error or deviation. The former acknowledges that the value is not perfect, whereas the latter claims precision.