Interface  Description 

DoubleUtils.ifelse 
Return a value with the same shape as
test which is filled with
elements selected from either yes or no depending on
whether the element of test is true or false . 
DoubleUtils.which 
Decide whether x satisfies the
boolean test. 
NumberUtils.Comparable<T extends Number> 
We need a precision parameter to determine whether two numbers are close enough to be treated
as equal.

Class  Description 

DoubleUtils 
These are the utility functions to manipulate
double and int . 
NumberUtils 
These are the utility functions to manipulate
Number s. 
Real 
A real number is an arbitrary precision number.

ScientificNotation 
Scientific notation expresses a number in this form
x = a * 10^{b}
a is called the significand or mantissa, and 1 ≤ a < 10.

Enum  Description 

DoubleUtils.RoundingScheme 
the available schemes to round a number

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