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
CEO of Professional Science Editing for Scientists @ prosciediting.com
Input digits exclusively
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Input digits exclusively" is correct and usable in written English.
It can be used when instructing someone to enter only numerical digits without any other characters or symbols. Example: "Please input digits exclusively when entering your phone number to avoid any errors."
✓ Grammatically correct
Science
News & Media
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
In addition, the all-optical adders use the negabinary modified signed-digit number representation (an extension of the negabinary number system) to represent the input digits.
Science
While Arabic digits (exclusively visually presented) and number words (visually and auditorily presented) had to be compared to the internal standard seven, animals (visually and auditorily presented) had to be compared to the internal standard dog/boxer.
In other words, the modified clock activates the switches to latch the input digit when its value changes.
Science
In such a case, the renewal of catalyst takes place due to a fresh catalyst input, exclusively.
Science
And that's weird because the derivative of the output with respect to the input is given exclusively in terms of the output.
Several studies have shown that sensory input does not exclusively result from actually performed movements.
Voice interfaces are interactive media in which the input is primarily or exclusively speech, and so is the feedback.
However, each filter drops or retains an input tuple after considering exclusively the contents of this tuple.
Thus, large areas of the primary somatosensory cortex (SI) represent the tactile input from the digits [ 20].
Science
We recently demonstrated that human SI contains fine-grained maps reflecting nociceptive-selective input to individual digits [ 4].
Science
This possibility is supported by the high alignment of the fine-grained maps of tactile and nociceptive input to individual digits in the SI [ 4].
Science
Expert writing Tips
Best practice
When instructing users, be direct and clear: specify the expected input type right away. For example, "Input digits exclusively to confirm your age".
Common error
Avoid using "input digits exclusively" in contexts where the user might expect to include other characters. For example, instructing someone to input a password, be clear about whether it's just digits or if other types of characters are required.
Source & Trust
77%
Authority and reliability
3.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "input digits exclusively" functions as an instruction or command, directing the user to enter only numerical digits. Ludwig AI indicates that this phrase is grammatically correct and usable.
Frequent in
Science
33%
News & Media
33%
Academia
33%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "input digits exclusively" is a directive instructing users to provide numerical digits and nothing else. As Ludwig AI confirms, the phrase is grammatically correct and usable in written English. Although examples are limited, the phrase is suitable for scenarios where data precision is paramount. Keep in mind that more common and simpler alternatives exist such as "enter numbers only" or "digits only".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Enter numbers only
Simplified instruction focusing solely on the 'numbers only' aspect.
Use only numerical digits
Rephrased to highlight the type of characters to use.
Digits only are allowed
Passive voice emphasizing the restriction on input.
Numerical input required
Formal instruction specifying the type of input needed.
Enter digits without other characters
Explicit instruction to avoid non-digit characters.
No letters or symbols, just digits
Reinforces restriction with a direct negative statement.
Insert only digits
Alternative verb emphasizing the act of insertion.
Provide numerical digits exclusively
More formal and verbose way of saying the same instruction.
Just digits, please
Polite and concise version of the instruction.
Enter the numerical values alone
Emphasizes that solely the number values are to be entered.
FAQs
How can I use "Input digits exclusively" in a sentence?
You can use "Input digits exclusively" when you need to specify that only numbers are allowed in a field. For instance, "Please input digits exclusively when entering your security code".
What's a simpler way to say "Input digits exclusively"?
Alternatives include "enter numbers only", "use digits only", or "digits only". All these options are more concise and direct.
Is it correct to say "input exclusively digits"?
While understandable, "input exclusively digits" is less conventional than "input digits exclusively". The latter flows more naturally in English.
When should I use "Input digits exclusively" instead of "Enter numbers"?
"Input digits exclusively" emphasizes precision and restricts the entry to only numerical digits, while "enter numbers" is a more general instruction that might allow for some variations.
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.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
77%
Authority and reliability
3.8/5
Expert rating
Real-world application tested