big + other â Numeric Instance Public methods Adds big and other, returning the result.

big ** exponent â numeric Instance Public methods Raises big to the exponent power (which may be an integer, float, or anything that will coerce to a number). The result may be a Fixnum, Bignum, or Float 123456789 ** 2 #=> 15241578750190521 123456789 ** 1.2 #=> 5126464716.09932 123456789 ** -2 #=> 6.5610001194102e-17 power!

big * other â Numeric Instance Public methods Multiplies big and other, returning the result.

big & numeric â integer Instance Public methods Performs bitwise and between big and numeric.

big % other â Numeric Instance Public methods Returns big modulo other. See Numeric#divmod for more information.

sqrt(x,prec) Instance Public methods Computes the square root of x to the specified number of digits of precision. BigDecimal.new('2').sqrt(16).to_s -> "0.14142135623730950488016887242096975E1"

sin(x, prec) Instance Public methods Computes the sine of x to the specified number of digits of precision. If x is infinite or NaN, returns NaN.

cos(x, prec) Instance Public methods Computes the cosine of x to the specified number of digits of precision. If x is infinite or NaN, returns NaN.

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.

PI(prec) Instance Public methods Computes the value of pi to the specified number of digits of precision.