RSpec
Ruby on Rails
Ruby
method
cbrt
Ruby latest stable (v2_5_5)
-
0 notes -
Class: Math
- 1_8_6_287
- 1_8_7_72
- 1_8_7_330
- 1_9_1_378 (0)
- 1_9_2_180 (0)
- 1_9_3_125 (0)
- 1_9_3_392 (0)
- 2_1_10 (38)
- 2_2_9 (0)
- 2_4_6 (6)
- 2_5_5 (0)
- 2_6_3 (0)
- What's this?
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acos
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acosh
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asin
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asinh
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atan
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atan2
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atanh
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cbrt
-
cos
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cosh
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erf
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erfc
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exp
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frexp
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gamma
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hypot
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ldexp
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lgamma
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log
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log10
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log2
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rsqrt
(<= v2_4_6)
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sin
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sinh
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sqrt
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tan
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tanh
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acos
(<= v1_8_7_330)
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acosh
(<= v1_8_7_330)
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asin
(<= v1_8_7_330)
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asinh
(<= v1_8_7_330)
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atan
(<= v1_8_7_330)
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atan2
(<= v1_8_7_330)
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atanh
(<= v1_8_7_330)
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cos
(<= v1_8_7_330)
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cosh
(<= v1_8_7_330)
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exp
(<= v1_8_7_330)
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log
(<= v1_8_7_330)
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log10
(<= v1_8_7_330)
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rsqrt
(<= v2_4_6)
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sin
(<= v1_8_7_330)
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sinh
(<= v1_8_7_330)
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sqrt
(<= v2_4_6)
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tan
(<= v1_8_7_330)
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tanh
(<= v1_8_7_330)
= private
= protected
cbrt(p1)
public
Returns the cube root of x.
Domain: (-INFINITY, INFINITY)
Codomain: (-INFINITY, INFINITY)
-9.upto(9) {|x| p [x, Math.cbrt(x), Math.cbrt(x)**3] } #=> [-9, -2.0800838230519, -9.0] # [-8, -2.0, -8.0] # [-7, -1.91293118277239, -7.0] # [-6, -1.81712059283214, -6.0] # [-5, -1.7099759466767, -5.0] # [-4, -1.5874010519682, -4.0] # [-3, -1.44224957030741, -3.0] # [-2, -1.25992104989487, -2.0] # [-1, -1.0, -1.0] # [0, 0.0, 0.0] # [1, 1.0, 1.0] # [2, 1.25992104989487, 2.0] # [3, 1.44224957030741, 3.0] # [4, 1.5874010519682, 4.0] # [5, 1.7099759466767, 5.0] # [6, 1.81712059283214, 6.0] # [7, 1.91293118277239, 7.0] # [8, 2.0, 8.0] # [9, 2.0800838230519, 9.0]
