Ruby class Float | Chautauqua

Methods

Querying

finite?2.0.finite?;(1.0/0.0).finite? # true;false Documentation Playground

2.0.finite?.inspect

true

infinite?2.0.infinite?;(1.0/0.0).infinite? # nil;1 Documentation Playground

2.0.infinite?.inspect

nil

nan?2.0.nan?;(0.0/0.0).nan? # false;true Documentation Playground

(0.0/0.0).nan?.inspect

true

zero?0.0.zero? # true Documentation Playground

-0.0.zero?

true

positive?1.5.positive? # true Documentation Playground

-1.5.positive?

false

negative?-1.5.negative? # true Documentation Playground

1.5.negative?

false

hash2.0.hash # 6345789 (differs) Documentation Playground

2.0.hash

Comparing

<2.0 < 2 # false Documentation Playground

2.0 < 2

false

<=2.0 <= 2 # true Documentation Playground

2.0 <= 2

true

<=>1.0<=>2; 1.0<=>1; 2.0<=>1 # -1;0;1 Documentation Playground

1.0 <=> 2

-1

== (alias ===)2.0 == 2 # true Documentation Playground

2.0 == 2

true

eql?2.0.eql?(2); 2.0.eql?(2.0) # false;true (same class) Documentation Playground

2.0.eql?(2)

false

>2.0 > 2 # false Documentation Playground

2.0 > 2

false

>=2.0 >= 2 # true Documentation Playground

2.0 >= 2

true

Arithmetic

+3.0 + 2 # 5.0 Documentation Playground

(3.0 + 2).inspect

5.0

-3.0 - 2 # 1.0 Documentation Playground

(3.0 - 2).inspect

1.0

*2.0 * 3 # 6.0 Documentation Playground

(2.1 * 3).inspect

6.300000000000001

/8.0 / 2 # 4.0 Documentation Playground

(8.0 / 2).inspect

4.0

% (alias modulo)11.0 % 3; 11.0.modulo(3) # 2.0 Documentation Playground

(11.0 % 3).inspect

2.0

**3.0 ** 2 # 9.0 Documentation Playground

(3.0 ** 2).inspect

9.0

-@-(2.5) # -2.5 Documentation Playground

f = -2.5
-f

2.5

abs (alias magnitude)-12.36.abs # 12.36 Documentation Playground

-0.5.abs

0.5

angle (alias arg phase)-2.0.angle; 2.0.angle # 3.14159…;0 Documentation Playground

-2.0.angle

3.141592653589793

divmod9.0.divmod(4) # [2,1.0] Documentation Playground

9.0.divmod(4).inspect + '; ' + 5.0.divmod(-2).inspect  + '; ' + -5.0.divmod(2).inspect

[2, 1.0]; [-3, -1.0]; [-3, 1.0]

fdiv9.0.fdiv(3);4.0.fdiv(3) # 3.0;1.33… Documentation Playground

9.0.fdiv(3).inspect

3.0

quo1.0.quo(2) # 0.5 Documentation Playground

1.0.quo(2)

0.5

Rounding

round(d)12.36.round(1);-12.36.round(1) # 12.4;-12.4 Documentation Playground

12.36.round(1)

12.4

ceil(d)12.36.ceil(1);-12.36.ceil(1) # 12.4;-12.3 Documentation Playground

12.36.ceil(1)

12.4

floor(d)12.36.floor(1);-12.36.floor(1) # 12.3;-12.4 Documentation Playground

12.36.floor(1)

12.3

truncate(d)12.36.truncate(1);-12.36.t…(1) # 12.3;-12.3 Documentation Playground

12.36.truncate(1)

12.3

Converting

to_i (alias to_int)4.8.to_i; -4.8.to_i # 4;-4 Documentation Playground

4.8.to_i.inspect

4

to_f2.5.to_f # 2.5 (self) Documentation Playground

2.5.to_f

2.5

to_r0.5.to_r # (1/2) Documentation Playground

0.3.to_r.inspect

(5404319552844595/18014398509481984)

rationalize0.3.rationalize # (3/10) Documentation Playground

0.333.rationalize(0.01).inspect

(1/3)

to_s (alias inspect)4.8.to_s;-4.8.to_s # "4.8";"-4.8" Documentation Playground

4.8.to_s.inspect

"4.8"

numerator0.5.numerator # 1 Documentation Playground

0.75.numerator

3

denominator0.5.denominator # 2 Documentation Playground

0.75.denominator

4

coerce3.14.coerce(2) # [2.0,3.14] Documentation Playground

3.14.coerce(2).inspect

[2.0, 3.14]

next_float1.0.next_float # 1.0000000000000002 Documentation Playground

1.0.next_float

1.0000000000000002

prev_float1.0.prev_float # 0.9999999999999999 Documentation Playground

1.0.prev_float

0.9999999999999999

Ruby class Float interactive

Methods

Querying

Comparing

Arithmetic

Rounding

Converting