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/Crystal 0.31

struct Float64

Defined in:

float.cr
primitives.cr
big/number.cr

Constant Summary

DIGITS = 15

The number of decimal digits that can be represented without losing precision

EPSILON = 2.2204460492503131e-16

The machine epsilon (difference between 1.0 and the next representable value)

INFINITY = (1_f64 / 0_f64).as(Float64)
MANT_DIGITS = 53

The number of digits that can be represented without losing precision (in base RADIX)

MAX = 1.7976931348623157e+308

Largest finite value

MAX_10_EXP = 308

The maximum possible power of 10 exponent (such that 10**MAX_10_EXP is representable)

MAX_EXP = 1024

The maximum possible normal power of 2 exponent

MIN = -1.7976931348623157e+308

Smallest finite value

MIN_10_EXP = -307

The minimum possible power of 10 exponent (such that 10**MIN_10_EXP is representable)

MIN_EXP = -1021

The minimum possible normal power of 2 exponent

MIN_POSITIVE = 2.2250738585072014e-308

Smallest representable positive value

NAN = (0_f64 / 0_f64).as(Float64)
RADIX = 2

The radix or integer base used by the internal representation

Constructors

Class Method Summary

Instance Method Summary

Instance methods inherited from struct Float

%(other) %, - -, //(other) //, <=>(other : BigDecimal)
<=>(other : BigRational)
<=>(other : BigInt) <=>
, days : Time::Span days, fdiv(other) : self fdiv, finite? finite?, hash(hasher) hash, hours : Time::Span hours, infinite? infinite?, microseconds : Time::Span microseconds, milliseconds : Time::Span milliseconds, minutes : Time::Span minutes, modulo(other) modulo, nan? nan?, nanoseconds : Time::Span nanoseconds, remainder(other) remainder, seconds : Time::Span seconds, to_big_d to_big_d, to_big_i : BigInt to_big_i, to_big_r to_big_r, to_io(io : IO, format : IO::ByteFormat) to_io, to_json(json : JSON::Builder) to_json, to_json_object_key to_json_object_key, weeks : Time::Span weeks

Constructor methods inherited from struct Float

from_io(io : IO, format : IO::ByteFormat) : self from_io

Instance methods inherited from module Comparable(BigDecimal)

<, <=(other : T) <=, <=>(other : T) <=>, ==(other : T) ==, >(other : T) >, >=(other : T) >=

Instance methods inherited from module Comparable(BigRational)

<, <=(other : T) <=, <=>(other : T) <=>, ==(other : T) ==, >(other : T) >, >=(other : T) >=

Instance methods inherited from module Comparable(BigInt)

<, <=(other : T) <=, <=>(other : T) <=>, ==(other : T) ==, >(other : T) >, >=(other : T) >=

Instance methods inherited from struct Number

*(other : Complex)
*(other : BigFloat) *
, +(other : BigFloat)
+(other : Complex)
+ +
, -(other : Complex)
-(other : BigFloat) -
, /(other : Complex)
/(other : BigFloat) /
, //(other) //, <=>(other : BigFloat)
<=>(other) : Int32? <=>
, ==(other : Complex) ==, abs abs, abs2 abs2, cis cis, clamp(range : Range)
clamp(min, max) clamp
, divmod(number) divmod, format(separator = '.', delimiter = ',', decimal_places : Int? = nil, *, group : Int = 3, only_significant : Bool = false) : String
format(io : IO, separator = '.', delimiter = ',', decimal_places : Int? = nil, *, group : Int = 3, only_significant : Bool = false) : Nil format
, humanize(io : IO, precision = 3, separator = '.', delimiter = ',', *, base = 10 ** 3, significant = true, prefixes : Indexable = SI_PREFIXES) : Nil
humanize(io : IO, precision = 3, separator = '.', delimiter = ',', *, base = 10 ** 3, significant = true, prefixes : Proc) : Nil
humanize(precision = 3, separator = '.', delimiter = ',', *, base = 10 ** 3, significant = true, prefixes = SI_PREFIXES) : String
humanize(io : IO, precision = 3, separator = '.', delimiter = ',', *, base = 10 ** 3, significant = true, &prefixes : Int32, Float64 -> Tuple(Int32, UNDERSCORE) | Tuple(Int32, UNDERSCORE, Bool)) : Nil
humanize(precision = 3, separator = '.', delimiter = ',', *, base = 10 ** 3, significant = true, &block) : String
humanize(precision = 3, separator = '.', delimiter = ',', *, base = 10 ** 3, significant = true, prefixes : Proc) : Nil humanize
, i i, round(digits = 0, base = 10) round, sign sign, significant(digits, base = 10) significant, step(*, to = nil, by = 1)
step(*, to = nil, by = 1, &block) step
, to_big_f to_big_f, to_c to_c, to_yaml(yaml : YAML::Nodes::Builder) to_yaml, zero? : Bool zero?

Constructor methods inherited from struct Number

zero : self zero

Class methods inherited from struct Number

si_prefix(magnitude : Int, prefixes = SI_PREFIXES) : Char? si_prefix

Instance methods inherited from module Comparable(BigFloat)

<, <=(other : T) <=, <=>(other : T) <=>, ==(other : T) ==, >(other : T) >, >=(other : T) >=

Instance methods inherited from module Comparable(Number)

<, <=(other : T) <=, <=>(other : T) <=>, ==(other : T) ==, >(other : T) >, >=(other : T) >=

Instance methods inherited from struct Value

==(other : JSON::Any)
==(other : YAML::Any)
==(other) ==
, dup dup

Instance methods inherited from class Object

!=(other) !=, !~(other) !~, ==(other) ==, ===(other : JSON::Any)
===(other : YAML::Any)
===(other) ===
, =~(other) =~, class class, dup dup, hash(hasher)
hash hash
, inspect(io : IO) : Nil
inspect : String inspect
, itself itself, not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, tap(&block) tap, to_json(io : IO)
to_json to_json
, to_pretty_json(indent : String = " ")
to_pretty_json(io : IO, indent : String = " ") to_pretty_json
, to_s : String
to_s(io : IO) : Nil to_s
, to_yaml(io : IO)
to_yaml to_yaml
, try(&block) try, unsafe_as(type : T.class) forall T unsafe_as

Constructor methods inherited from class Object

from_json(string_or_io, root : String) : self
from_json(string_or_io) : self from_json
, from_yaml(string_or_io : String | IO) : self from_yaml

Constructor Detail

def self.new(ctx : YAML::ParseContext, node : YAML::Nodes::Node)Source

def self.new(pull : JSON::PullParser)Source

def self.new(value)Source

Returns a Float64 by invoking #to_f64 on value.

Class Method Detail

def self.from_json_object_key?(key : String)Source

def self.new!(value)Source

Returns a Float64 by invoking #to_f64! on value.

Instance Method Detail

def !=(other : Int8) : BoolSource

Returns true if self is not equal to other.

def !=(other : Int16) : BoolSource

Returns true if self is not equal to other.

def !=(other : Int32) : BoolSource

Returns true if self is not equal to other.

def !=(other : Int64) : BoolSource

Returns true if self is not equal to other.

def !=(other : Int128) : BoolSource

Returns true if self is not equal to other.

def !=(other : UInt8) : BoolSource

Returns true if self is not equal to other.

def !=(other : UInt16) : BoolSource

Returns true if self is not equal to other.

def !=(other : UInt32) : BoolSource

Returns true if self is not equal to other.

def !=(other : UInt64) : BoolSource

Returns true if self is not equal to other.

def !=(other : UInt128) : BoolSource

Returns true if self is not equal to other.

def !=(other : Float32) : BoolSource

Returns true if self is not equal to other.

def !=(other : Float64) : BoolSource

Returns true if self is not equal to other.

def *(other : Float64) : selfSource

Returns the result of multiplying self and other.

def *(other : Int16) : selfSource

Returns the result of multiplying self and other.

def *(other : Int32) : selfSource

Returns the result of multiplying self and other.

def *(other : Int64) : selfSource

Returns the result of multiplying self and other.

def *(other : Int128) : selfSource

Returns the result of multiplying self and other.

def *(other : Int8) : selfSource

Returns the result of multiplying self and other.

def *(other : UInt8) : selfSource

Returns the result of multiplying self and other.

def *(other : UInt16) : selfSource

Returns the result of multiplying self and other.

def *(other : UInt32) : selfSource

Returns the result of multiplying self and other.

def *(other : UInt64) : selfSource

Returns the result of multiplying self and other.

def *(other : UInt128) : selfSource

Returns the result of multiplying self and other.

def *(other : Float32) : selfSource

Returns the result of multiplying self and other.

def **(other : Int32)Source

def **(other : Float64)Source

def **(other)Source

def +(other : Int16) : selfSource

Returns the result of adding self and other.

def +(other : Int32) : selfSource

Returns the result of adding self and other.

def +(other : Int64) : selfSource

Returns the result of adding self and other.

def +(other : Int128) : selfSource

Returns the result of adding self and other.

def +(other : UInt8) : selfSource

Returns the result of adding self and other.

def +(other : UInt32) : selfSource

Returns the result of adding self and other.

def +(other : UInt64) : selfSource

Returns the result of adding self and other.

def +(other : UInt128) : selfSource

Returns the result of adding self and other.

def +(other : Float32) : selfSource

Returns the result of adding self and other.

def +(other : Float64) : selfSource

Returns the result of adding self and other.

def +(other : UInt16) : selfSource

Returns the result of adding self and other.

def +(other : Int8) : selfSource

Returns the result of adding self and other.

def -(other : Float32) : selfSource

Returns the result of subtracting self and other.

def -(other : Float64) : selfSource

Returns the result of subtracting self and other.

def -(other : Int16) : selfSource

Returns the result of subtracting self and other.

def -(other : Int32) : selfSource

Returns the result of subtracting self and other.

def -(other : Int64) : selfSource

Returns the result of subtracting self and other.

def -(other : Int128) : selfSource

Returns the result of subtracting self and other.

def -(other : UInt8) : selfSource

Returns the result of subtracting self and other.

def -(other : UInt16) : selfSource

Returns the result of subtracting self and other.

def -(other : UInt32) : selfSource

Returns the result of subtracting self and other.

def -(other : UInt64) : selfSource

Returns the result of subtracting self and other.

def -(other : UInt128) : selfSource

Returns the result of subtracting self and other.

def -(other : Int8) : selfSource

Returns the result of subtracting self and other.

def /(other : Int8) : Float64Source

def /(other : BigDecimal) : BigDecimalSource

def /(other : UInt8) : Float64Source

def /(other : Int16) : Float64Source

def /(other : UInt16) : Float64Source

def /(other : BigFloat) : BigFloatSource

def /(other : BigInt) : BigFloatSource

def /(other : Float64) : Float64Source

Returns the result of division self and other.

def /(other : Float32) : Float64Source

def /(other : UInt128) : Float64Source

def /(other : Int128) : Float64Source

def /(other : UInt64) : Float64Source

def /(other : Int64) : Float64Source

def /(other : UInt32) : Float64Source

def /(other : Int32) : Float64Source

def /(other : BigRational) : BigRationalSource

def <(other : Int8) : BoolSource

Returns true if self is less than other.

def <(other : Int32) : BoolSource

Returns true if self is less than other.

def <(other : Int64) : BoolSource

Returns true if self is less than other.

def <(other : Int128) : BoolSource

Returns true if self is less than other.

def <(other : UInt8) : BoolSource

Returns true if self is less than other.

def <(other : UInt16) : BoolSource

Returns true if self is less than other.

def <(other : UInt32) : BoolSource

Returns true if self is less than other.

def <(other : UInt64) : BoolSource

Returns true if self is less than other.

def <(other : UInt128) : BoolSource

Returns true if self is less than other.

def <(other : Float32) : BoolSource

Returns true if self is less than other.

def <(other : Float64) : BoolSource

Returns true if self is less than other.

def <(other : Int16) : BoolSource

Returns true if self is less than other.

def <=(other : Int32) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : Float64) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : Float32) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : UInt128) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : UInt64) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : UInt32) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : UInt16) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : UInt8) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : Int128) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : Int64) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : Int16) : BoolSource

Returns true if self is less than or equal to other.

def <=(other : Int8) : BoolSource

Returns true if self is less than or equal to other.

def ==(other : Float64) : BoolSource

Returns true if self is equal to other.

def ==(other : Int8) : BoolSource

Returns true if self is equal to other.

def ==(other : Float32) : BoolSource

Returns true if self is equal to other.

def ==(other : UInt128) : BoolSource

Returns true if self is equal to other.

def ==(other : UInt64) : BoolSource

Returns true if self is equal to other.

def ==(other : UInt32) : BoolSource

Returns true if self is equal to other.

def ==(other : UInt16) : BoolSource

Returns true if self is equal to other.

def ==(other : UInt8) : BoolSource

Returns true if self is equal to other.

def ==(other : Int128) : BoolSource

Returns true if self is equal to other.

def ==(other : Int64) : BoolSource

Returns true if self is equal to other.

def ==(other : Int32) : BoolSource

Returns true if self is equal to other.

def ==(other : Int16) : BoolSource

Returns true if self is equal to other.

def >(other : Float64) : BoolSource

Returns true if self is greater than other.

def >(other : Float32) : BoolSource

Returns true if self is greater than other.

def >(other : UInt128) : BoolSource

Returns true if self is greater than other.

def >(other : UInt64) : BoolSource

Returns true if self is greater than other.

def >(other : UInt32) : BoolSource

Returns true if self is greater than other.

def >(other : UInt16) : BoolSource

Returns true if self is greater than other.

def >(other : UInt8) : BoolSource

Returns true if self is greater than other.

def >(other : Int128) : BoolSource

Returns true if self is greater than other.

def >(other : Int64) : BoolSource

Returns true if self is greater than other.

def >(other : Int32) : BoolSource

Returns true if self is greater than other.

def >(other : Int16) : BoolSource

Returns true if self is greater than other.

def >(other : Int8) : BoolSource

Returns true if self is greater than other.

def >=(other : Float64) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : Float32) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : UInt128) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : UInt64) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : UInt32) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : UInt16) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : UInt8) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : Int128) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : Int64) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : Int32) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : Int16) : BoolSource

Returns true if self is greater than or equal to other.

def >=(other : Int8) : BoolSource

Returns true if self is greater than or equal to other.

def ceilSource

def cloneSource

def floorSource

def roundSource

Description copied from struct Number

Rounds this number to a given precision in decimal digits.

-1763.116.round(2) # => -1763.12

def to_f : Float64Source

Returns self converted to Float64. Raises OverflowError in case of overflow.

def to_f! : Float64Source

Returns self converted to Float64. In case of overflow a wrapping is performed.

def to_f32 : Float32Source

Returns self converted to Float32. Raises OverflowError in case of overflow.

def to_f32! : Float32Source

Returns self converted to Float32. In case of overflow a wrapping is performed.

def to_f64 : Float64Source

Returns self converted to Float64. Raises OverflowError in case of overflow.

def to_f64! : Float64Source

Returns self converted to Float64. In case of overflow a wrapping is performed.

def to_i : Int32Source

Returns self converted to Int32. Raises OverflowError in case of overflow.

def to_i! : Int32Source

Returns self converted to Int32. In case of overflow a wrapping is performed.

def to_i128 : Int128Source

Returns self converted to Int128. Raises OverflowError in case of overflow.

def to_i128! : Int128Source

Returns self converted to Int128. In case of overflow a wrapping is performed.

def to_i16 : Int16Source

Returns self converted to Int16. Raises OverflowError in case of overflow.

def to_i16! : Int16Source

Returns self converted to Int16. In case of overflow a wrapping is performed.

def to_i32 : Int32Source

Returns self converted to Int32. Raises OverflowError in case of overflow.

def to_i32! : Int32Source

Returns self converted to Int32. In case of overflow a wrapping is performed.

def to_i64 : Int64Source

Returns self converted to Int64. Raises OverflowError in case of overflow.

def to_i64! : Int64Source

Returns self converted to Int64. In case of overflow a wrapping is performed.

def to_i8 : Int8Source

Returns self converted to Int8. Raises OverflowError in case of overflow.

def to_i8! : Int8Source

Returns self converted to Int8. In case of overflow a wrapping is performed.

def to_s : StringSource

Description copied from class Object

Returns a string representation of this object.

Descendants must usually not override this method. Instead, they must override #to_s(io), which must append to the given IO object.

def to_s(io : IO) : NilSource

Description copied from class Object

Appends a String representation of this object to the given IO object.

An object must never append itself to the io argument, as this will in turn call #to_s(io) on it.

def to_u : UInt32Source

Returns self converted to UInt32. Raises OverflowError in case of overflow.

def to_u! : UInt32Source

Returns self converted to UInt32. In case of overflow a wrapping is performed.

def to_u128 : UInt128Source

Returns self converted to UInt128. Raises OverflowError in case of overflow.

def to_u128! : UInt128Source

Returns self converted to UInt128. In case of overflow a wrapping is performed.

def to_u16 : UInt16Source

Returns self converted to UInt16. Raises OverflowError in case of overflow.

def to_u16! : UInt16Source

Returns self converted to UInt16. In case of overflow a wrapping is performed.

def to_u32 : UInt32Source

Returns self converted to UInt32. Raises OverflowError in case of overflow.

def to_u32! : UInt32Source

Returns self converted to UInt32. In case of overflow a wrapping is performed.

def to_u64 : UInt64Source

Returns self converted to UInt64. Raises OverflowError in case of overflow.

def to_u64! : UInt64Source

Returns self converted to UInt64. In case of overflow a wrapping is performed.

def to_u8 : UInt8Source

Returns self converted to UInt8. Raises OverflowError in case of overflow.

def to_u8! : UInt8Source

Returns self converted to UInt8. In case of overflow a wrapping is performed.

def truncSource

© 2012–2019 Manas Technology Solutions.
Licensed under the Apache License, Version 2.0.
https://crystal-lang.org/api/0.31.1/Float64.html