Numbers are used to count and calculate.

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63
votes
6answers
11k views

Why are calculator screen digits right-aligned?

Is there any logical reason behind digit alignment on a calculator? If yes, can we apply this for visual interfaces of numbers on the web?
44
votes
4answers
5k views

Why aren't HTML5 typed number inputs right aligned, and should they be?

As you may know, with HTML5 when an input has type="number" the field is "customized". Two little arrows are added to the field (w3school example) but the numbers are still left aligned. I saw that ...
40
votes
15answers
5k views

Slider control when there is no maximum value

I'm trying to design a control where the user can enter a figure that has no maximum value. For example, how many miles that person wants to travel that year. There's a text field there for direct ...
37
votes
11answers
5k views

Make user aware that he cannot enter arbitrary values into textbox?

In my current web project I have a textbox where the user can enter a bid for an auction. However, to prevent bidding of arbitrary sums, only certain values that match predetermined intervals are ...
32
votes
2answers
3k views

Why do coins in some countries not display their denomination? [closed]

Coins have two levels of interfaces: a physical interface (their size, shape and weight) -- usable by vending machines and to certain extent by people with long-established habits of using these ...
18
votes
6answers
4k views

Does adding a click count next to a hyperlink enhance the user experience?

What is the main purpose behind Discourse's link click count?
18
votes
5answers
4k views

What is the appeal of old style numbers and why do modern fonts still include them?

Here's text rendered with Raleway, a font designed around 2012, according to Google Fonts:             I'm far from a font expert, but the ...
17
votes
4answers
10k views

Is there a standard “to left justify text and right justify numeric values.”

I'm being told by an experienced BA (> 25 years) that "Numeric numbers are usually totaled therefore should be right justified." And that text should always be left justified. I have never heard ...
16
votes
7answers
835 views

Line numbers in text editor

Okay this sounds like a question a six year old would ask, (and I hope there is an empirical answer) so here's my inner child: In programming numbers start from from zero but why do line numbers in ...
15
votes
7answers
860 views

Ideal breaks for long numbers?

Is there any rules-of-thumb or actual research on how to make long numbers more legible? We are dealing with 14 digit numbers: 12345678912345 This can be hard to read back over the phone as it's ...
13
votes
3answers
507 views

Should large numbers be formatted with delimiters?

Every country has a different way of delimiting large numbers. In USA, we put commas between every three digits. For example, one million would appear as 1,000,000. I believe this allows the reader to ...
9
votes
3answers
1k views

What is the correct way to format cents and dollars in a grid column with a total?

I have a grid with columns that are formatted as cents and dollars. By default, the tender and amount columns are being formatted as integers, but for the total we are formatting it as 2 decimal ...
9
votes
3answers
252 views

Counting to Infinity - Are counters usable?

As the web gets older and bigger the numbers in a lot of counters will tend to increase more and more. I'm very curious about the implications in usability and user experience: Are these big numbers ...
8
votes
4answers
722 views

Is it good practice to only accept numeric keystrokes in number-only fields?

I have a form that only takes in numbers as it represents a dollar amount. Currently, the form only accepts numerical keystrokes. Is this good practise?
8
votes
2answers
334 views

Is a number easier to read with the thousand separator?

This may sound like a stupid question but I'm being taken to task for this at the moment. Personally I believe that it's easier to read 1,234.56 than 1234.56. However there are others that are saying ...
8
votes
5answers
550 views

Conventions for the display of large numbers

I have a grid column which can display numbers ranging from single digits and into the billions. I think that at some point we need to switch from displaying the whole number to using abbreviations, ...
7
votes
2answers
231 views

Numeric data input in a web based scientific software

(Note: I'm more a backend developer, so please forgive my lack of UX terminologies. Don't hesitate to edit the text or the tags) We are working on an online scientific software with specific ...
7
votes
3answers
131 views

What amount length to expect over all currencies?

I've looked around the questions and formatting prices with different currencies seems to be a recurring problem. I encountered a variation of this issue. I have figured a format to display the price ...
6
votes
5answers
248 views

Dealing with dozen digit number inputs

I am building a game that involves money. Users have money. Interactions can be as large as a trillion (1,000,000,000,000) or as small as a few thousand. Basically, users set the price of land they ...
6
votes
5answers
605 views

Is there a way to have a user only input multiples of 5,000?

In the web app I'm designing, The user will input a restricted value that is a multiple of 5,000 with a minimum of 5,000. The maximum could potentially go up to maybe 1,000,000. (In actuality there ...
6
votes
4answers
3k views

What android UI control fits for selection of number in large range?

I'm working on a application for tracking body mass measurements. I need the user to be able to input a number representing body weight, whose magnitude ranges from 0.00 kg to normally 300.00 kg. The ...
5
votes
4answers
129 views

Representing how many you have with how many they want

I have a problem whereby we are asking a user for multiple items. This is in a gaming scenario and the game has lots of items. Each item is manufactured from other items and is only counted once it ...
5
votes
3answers
304 views

Representing large numbers

I'm developing a charting application. There could be a situation where I would have to display large numbers on the chart. The problem is that they number labels have to fit inside the chart columns, ...
5
votes
3answers
330 views

Best way to label ranges of values

This is more or less a style guide question. I'm curious if anyone is aware of any official style guides that deal with this problem well. I tried to come up with a general approach but I'm curious to ...
5
votes
5answers
371 views

Displaying prices, where lower is better, in a graph

When displaying prices (where lower prices are better) in a chart, should the lower price be at the top or bottom? I'm asking, because usually higher placement = better result, but it's ...
4
votes
2answers
339 views

What should be ideal date on calendar icon?

I am designing a calendar icon for an app, I am putting a random date right now on it, what should be ideal date that I should put. Is there any usability research done on the same? I know the best ...
4
votes
3answers
113 views

Rules of writing out numbers vs. What the User prefers to read

A simple and generic question that I can not find a straight answer for. The rule that I am debating is based on that I should write 2 if it is a measured value. In this situation the 2 is a rounded ...
4
votes
3answers
176 views

In a high precision meter do I display battery voltage as a fractional number of volts or as a whole number of millivolts?

There's an Android battery meter application for enthusiasts (control freaks actually) that displays the remaining charge percentage and the current voltage. A typical phone will use a Li-Ion battery ...
4
votes
3answers
136 views

Word for a group of numbers?

I have a list of different numbers/ID's related to a company and right now I am using the title ID's to group them but I feel that this title may not be the best. Does anyone know of any better words ...
4
votes
2answers
347 views

What is correct format for displaying financial number specifically zero in an application?

In our application we have a number of views that display financial numbers. I am just trying to figure out what is the best way to display zero or no value. Is there a standard format. Quote Number ...
4
votes
1answer
22 views

I18n without translation

Having a locale-aware application starting up for a locale without translation, which behavior is best from the user experience point: Fall back to a supported locale (and give the user the option ...
3
votes
4answers
398 views

Combined data and unit form field

Assume you’re helping to design the GUI of a WYSIWYG word processor. Users shall be able to change font size. There could be relative controls for larger and smaller and there could be keyword-based ...
3
votes
4answers
3k views

How to make HTML5 number input field more user friendly?

I am upgrading my website to adopt HTML5 standard. I have a field that only accepts integers from 0-99. Originally it has the following code: <input name='age' type='text' size=2 maxlength=2> ...
3
votes
2answers
293 views

Is a decimal comma used in data entry?

Historically, I know that in most parts of the world decimals have been represented with a comma. 3.14 (US and Canada mostly) 3,14 (most other places) In software development, normally a period ...
3
votes
2answers
117 views

How to make a big random value more readable for humans?

I have a strong random value that looks something like 4?1V*8G?ۑL?? (it is actually even worse as some of the characters were changed to ? when pasting it here). I can convert it to a hexidecimal ...
3
votes
1answer
53 views

Should I display a “plus” in front of a production number?

I have a grid displaying stocks and production of resources (related to my previous question). Should I display a plus symbol (+) in front of the production number when it's positive? Or do you think ...
3
votes
2answers
56 views

How should a sum of heterogeneous currencies be presented to the user?

We write analytics software. Recently our customers have asked us to take a look at expanding our services into the e-commerce arena, and this has raised some tricky questions in an internationalized ...
3
votes
2answers
182 views

Best way of making a credits transfer dialog

I am designing a dialog which would allow user to transfer credits from his account to "an object's account". Transfer is only in one direction -- after you confirm transfering credits to an object's ...
2
votes
2answers
131 views

Integer input field: special case for unbounded / unlimited

I am developing a form where the user needs to enter the maximum number of allowed things. Zero is a legitimate value meaning that none are allowed. I need to find a special value to indicate that ...
2
votes
6answers
274 views

What is the reason to show animated numbers counting towards the final number?

In some apps, when navigating to a page that has number showing one or more different numbers it will animate from zero to the final number in about 0.5 seconds, counting upwards. Till example if the ...
2
votes
1answer
6k views

Should content be left aligned or right aligned in a table that contains a mix of text and numbers?

I have many tables within a site that have a mixture of both numeric values of all types (currency, integers, etc) and columns that contain text. What is the guidelines or standards for alignment? ...
2
votes
2answers
172 views

How fluent should filters be?

I have a few types of filters for a table and they should be concatenated. So in the end I should get something like this: URL contains google.com and Visits > 1000 and Date is before 30.12.2011 ...
2
votes
1answer
406 views

How should numbers be aligned in a table column?

We have tables that have numbers as data on a few columns. They are not currency numbers that add up to a total but just regular integers. For example, the number of subscribers. Should they be ...
2
votes
4answers
141 views

Should quantities with unit labels be left- or right-aligned in a grid?

e.g. 3 months 12 years, 3 months 10 years 8 years, 6 months
2
votes
3answers
94 views

How to allow user to choose a value multiplier

I've recently published an Android app that is intended for use as a board game currency (think Monopoly etc.). Because it is intended for multiple types of game, and because even within Monopoly the ...
2
votes
1answer
65 views

Should number input fields also include dividers { . - }?

When we sign in to our online bank we often use our social security number which from the government has a dash in it. As in YYMMDD-XXXX (for Swedish). And when we want to transfer money from our ...
2
votes
1answer
111 views

How to display negative numbers which are not currency?

I'm writing an application that will be showing negative numbers of units (as in shares of stock). When showing negative numbers in currency, it's typical to display the it in parentheses, e.g. ...
2
votes
2answers
219 views

number justification in HTML table cells where some cells are editable and some are not?

A convention in financial software is to right-justify numeric and currency values when they are displayed in a table. This allows easy top-to-bottom scanning and summing of numbers. The same ...
2
votes
2answers
99 views

What's the best way to group digits of a large number/code?

I am in a situation where I need to display a barcode of 18 alphanumeric characters. In case the barcode scanner is broken or cannot read for any reason, the operator will have to manually type in ...
1
vote
3answers
91 views

Is number agreement necessary?

I want to display some attributes with a cardinal number. The following is an example with a software testing framework, but this question applies to more general cases: 1 Error 4 Success 5 ...