# Notation Added in[API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # Notation *** ** * ** *** Kotlin\|[Java](https://developer.android.com/reference/android/icu/number/Notation "View this page in Java") ``` open class Notation ``` |---|------------------------------------------------------------------------------------------------------------| | [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) || | ↳ | [android.icu.number.Notation](https://developer.android.com/reference/kotlin/android/icu/number/Notation#) | |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Known Direct Subclasses [CompactNotation](https://developer.android.com/reference/kotlin/android/icu/number/CompactNotation),[ScientificNotation](https://developer.android.com/reference/kotlin/android/icu/number/ScientificNotation),[SimpleNotation](https://developer.android.com/reference/kotlin/android/icu/number/SimpleNotation) |------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------| | [CompactNotation](https://developer.android.com/reference/kotlin/android/icu/number/CompactNotation) | A class that defines the scientific notation style to be used when formatting numbers in NumberFormatter. | | [ScientificNotation](https://developer.android.com/reference/kotlin/android/icu/number/ScientificNotation) | A class that defines the scientific notation style to be used when formatting numbers in NumberFormatter. | | [SimpleNotation](https://developer.android.com/reference/kotlin/android/icu/number/SimpleNotation) | A class that defines the simple notation style to be used when formatting numbers in NumberFormatter. | | A class that defines the notation style to be used when formatting numbers in NumberFormatter. ## Summary | Public methods || |-----------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | openstatic[CompactNotation](https://developer.android.com/reference/kotlin/android/icu/number/CompactNotation)! | [compactLong](https://developer.android.com/reference/kotlin/android/icu/number/Notation#compactLong())`()` Print the number using long-form compact notation. | | openstatic[CompactNotation](https://developer.android.com/reference/kotlin/android/icu/number/CompactNotation)! | [compactShort](https://developer.android.com/reference/kotlin/android/icu/number/Notation#compactShort())`()` Print the number using short-form compact notation. | | openstatic[ScientificNotation](https://developer.android.com/reference/kotlin/android/icu/number/ScientificNotation)! | [engineering](https://developer.android.com/reference/kotlin/android/icu/number/Notation#engineering())`()` Print the number using engineering notation, a variant of scientific notation in which the exponent must be divisible by 3. | | openstatic[ScientificNotation](https://developer.android.com/reference/kotlin/android/icu/number/ScientificNotation)! | [scientific](https://developer.android.com/reference/kotlin/android/icu/number/Notation#scientific())`()` Print the number using scientific notation (also known as scientific form, standard index form, or standard form in the UK). | | openstatic[SimpleNotation](https://developer.android.com/reference/kotlin/android/icu/number/SimpleNotation)! | [simple](https://developer.android.com/reference/kotlin/android/icu/number/Notation#simple())`()` Print the number using simple notation without any scaling by powers of ten. | ## Public methods ### compactLong Added in[API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open static fun compactLong(): CompactNotation! ``` Print the number using long-form compact notation. For more information on compact notation, see[compactShort](https://developer.android.com/reference/kotlin/android/icu/number/Notation#compactShort()). In long form, the powers of ten are spelled out fully. Example outputs in*en-US*when printing 8.765E7 through 8.765E0: ```kotlin 88 million 8.8 million 876 thousand 88 thousand 8.8 thousand 876 88 8.8 ``` | Return || |-------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------| | [CompactNotation](https://developer.android.com/reference/kotlin/android/icu/number/CompactNotation)! | A CompactNotation for passing to the NumberFormatter notation() setter. | **See Also** - [android.icu.number.NumberFormatter](https://developer.android.com/reference/kotlin/android/icu/number/NumberFormatter) ### compactShort Added in[API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open static fun compactShort(): CompactNotation! ``` Print the number using short-form compact notation. *Compact notation*, defined in Unicode Technical Standard #35 Part 3 Section 2.4.1, prints numbers with localized prefixes or suffixes corresponding to different powers of ten. Compact notation is similar to engineering notation in how it scales numbers. Compact notation is ideal for displaying large numbers (over \~1000) to humans while at the same time minimizing screen real estate. In short form, the powers of ten are abbreviated. In*en-US* , the abbreviations are "K" for thousands, "M" for millions, "B" for billions, and "T" for trillions. Example outputs in*en-US*when printing 8.765E7 through 8.765E0: ```kotlin 88M 8.8M 876K 88K 8.8K 876 88 8.8 ``` When compact notation is specified without an explicit rounding strategy, numbers are rounded off to the closest integer after scaling the number by the corresponding power of 10, but with a digit shown after the decimal separator if there is only one digit before the decimal separator. The default compact notation rounding strategy is equivalent to: ```kotlin Rounder.integer().withMinDigits(2) ``` | Return || |-------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------| | [CompactNotation](https://developer.android.com/reference/kotlin/android/icu/number/CompactNotation)! | A CompactNotation for passing to the NumberFormatter notation() setter. | **See Also** - [android.icu.number.NumberFormatter](https://developer.android.com/reference/kotlin/android/icu/number/NumberFormatter) ### engineering Added in[API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open static fun engineering(): ScientificNotation! ``` Print the number using engineering notation, a variant of scientific notation in which the exponent must be divisible by 3. Example outputs in*en-US*when printing 8.765E4 through 8.765E-3: ```kotlin 87.65E3 8.765E3 876.5E0 87.65E0 8.765E0 876.5E-3 87.65E-3 8.765E-3 0E0 ``` | Return || |-------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------| | [ScientificNotation](https://developer.android.com/reference/kotlin/android/icu/number/ScientificNotation)! | A ScientificNotation for chaining or passing to the NumberFormatter notation() setter. | **See Also** - [android.icu.number.NumberFormatter](https://developer.android.com/reference/kotlin/android/icu/number/NumberFormatter) ### scientific Added in[API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open static fun scientific(): ScientificNotation! ``` Print the number using scientific notation (also known as scientific form, standard index form, or standard form in the UK). The format for scientific notation varies by locale; for example, many Western locales display the number in the form "#E0", where the number is displayed with one digit before the decimal separator, zero or more digits after the decimal separator, and the corresponding power of 10 displayed after the "E". Example outputs in*en-US*when printing 8.765E4 through 8.765E-3: ```kotlin 8.765E4 8.765E3 8.765E2 8.765E1 8.765E0 8.765E-1 8.765E-2 8.765E-3 0E0 ``` | Return || |-------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------| | [ScientificNotation](https://developer.android.com/reference/kotlin/android/icu/number/ScientificNotation)! | A ScientificNotation for chaining or passing to the NumberFormatter notation() setter. | **See Also** - [android.icu.number.NumberFormatter](https://developer.android.com/reference/kotlin/android/icu/number/NumberFormatter) ### simple Added in[API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open static fun simple(): SimpleNotation! ``` Print the number using simple notation without any scaling by powers of ten. This is the default behavior. Since this is the default behavior, this method needs to be called only when it is necessary to override a previous setting. Example outputs in*en-US*when printing 8.765E7 through 8.765E0: ```kotlin 87,650,000 8,765,000 876,500 87,650 8,765 876.5 87.65 8.765 ``` | Return || |-----------------------------------------------------------------------------------------------------|------------------------------------------------------------------------| | [SimpleNotation](https://developer.android.com/reference/kotlin/android/icu/number/SimpleNotation)! | A SimpleNotation for passing to the NumberFormatter notation() setter. | **See Also** - [android.icu.number.NumberFormatter](https://developer.android.com/reference/kotlin/android/icu/number/NumberFormatter)