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atan

atan(x, prec)

Instance Public methods

Computes the arctangent of x to the specified number of digits of precision.

If x is NaN, returns NaN.

Links:

https://github.com/ruby/ruby/blob/697b53d8a96db8ad797baa5fca37d6cec5d7ca9d/ext/bigdecimal/lib/bigdecimal/math.rb#L119

doc_ruby_on_rails

2015-03-31 09:48:29

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