Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

matrix must not be

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "matrix must not be" is correct and usable in written English.
It can be used in contexts where you want to specify that a certain condition or requirement regarding a matrix should not be met. Example: "In this analysis, the matrix must not be singular to ensure accurate results."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

Second, the summation of each row of this matrix must not be zero which means each distribution center should cover the demand of at least one customer.

Second, the summation of each row of this matrix must not be zero which means that each distribution center should cover the demand of at least one customer.

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

A new nonmonotone line search technique is presented, moreover, the Jacobian matrix (nabla e_{k}) must not be computed at every iteration.

Let be the coordinates that must not be changed, let be the matrix obtained from by removing the corresponding columns; this matrix defines the shortened code.

Although the focus of this paper is the automatic reorganization of matrices, the importance of human-computer interaction must not be dismissed, given that users must have the final word about which ordering fits better some task.

The "kill matrix", K, consists of the unwanted EM, which must not be part of the final flux space and have to be deleted from the network.

The electrode surfaces must not be roughened.

Women must not be separated.

News & Media

Independent

It must not be forgotten.

News & Media

The New York Times

This must not be allowed.

News & Media

The New York Times

We must not be enemies.

News & Media

Forbes
Show more...

Expert writing Tips

Best practice

When using "matrix must not be", ensure the context clearly defines what condition or state is being prohibited. This avoids ambiguity and strengthens the statement's impact.

Common error

Avoid using "matrix must not be" in overly general terms. Always specify why the matrix should not be a certain way, providing concrete reasons or consequences to support the prohibition.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "matrix must not be" functions as a modal verb phrase expressing a strong prohibition or requirement. It's typically used in technical or scientific contexts to specify a condition that a matrix must avoid to ensure validity or correctness, as confirmed by Ludwig.

Expression frequency: Rare

Frequent in

Science

66%

News & Media

17%

Formal & Business

17%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "matrix must not be" is a modal verb phrase used to express a strong constraint, often encountered in scientific and technical fields. Ludwig AI confirms its grammatical correctness. It serves to explicitly prohibit a certain condition or state of a matrix in order to maintain validity or correctness. While relatively rare in general usage, understanding its function and appropriate contexts ensures clarity and precision in technical writing. The best practice is to be explicit about the condition and supporting rationale, while avoiding overly broad statements.

FAQs

How can I use "matrix must not be" in a sentence?

Use "matrix must not be" to express a strict requirement for a matrix to avoid a specific condition or state. For example, "The matrix must not be singular for the equation to be solvable."

What is a formal alternative to "matrix must not be"?

A more formal alternative is "matrix is prohibited from being". This phrase is suitable for technical or academic writing.

Which is more appropriate, "matrix should not be" or "matrix must not be"?

"Matrix must not be" indicates a strict requirement, while "matrix should not be" ("matrix should not be") suggests a recommendation or preference. Choose the phrase that accurately reflects the strength of the condition.

What does it mean when something "must not be"?

When something "must not be", it means it is essential to avoid that specific state or condition. This conveys a strong prohibition or requirement.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

87%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: