v.4.1.0 (2017-07-09): Aeries - Major update

Various numeral systems

• Binary numbers literals
• Octal numbers literals
• Hexadecimal numbers literals
• Number literals with base between 1 and 36
• base(b, digit1, ..., digitn) function to generate numbers in any given base

Leading zeros support

• 0001
• 0001.12e10
• ...

Working with digits

• ndig(number, targetBase) function - number of digits - specified numeral system base
• ndig10(number) function - number of digits - base 10
• dig(number, targetBase, position) - digit at position - specified numeral system base
• dig10(number, position) - digit at position - base 10

Prime factorization

• nfact(number) - number of prime factors
• factval(number, factorId) - factor value
• factexp(number, factorId) - factor exponent

Not-a-Number

• [NaN] symbol
• isNaN(x) function
• coalesce(a1,...,an) function - first non-NaN value

Statistics

• med(a1, a2, ..., an) - sample median
• mode(a1, a2, ..., an) - sample mode

Boolean logic

• [true] symbol
• [false] symbol
• or(a1,...an) - variadic or
• and(a1,...an) - variadic and
• xor(a1,...an) - variadic xor

Other functions

• root(order, number) - root + support for negative numbers and odd-order
• arcsec(x) - inverse trigonometric secant
• arccsc(x) - inverse trigonometric cosecant
• ndist(v1, v2, ... vn) - number of distinct values
• argmin(v1, v2, ... vn) - index of minimum
• argmax(v1, v2, ... vn) - index of maximum

New operator

• % support (i.e. 2%, x%)

Calculus

• der( f(x), x, x0 ) - alternative syntax for derivative (no need to define x as argument)

Built-in tokens

• Option to override built-in tokens
• Possibility to remove built-in tokens
• Possibility to change built-in token
• Key words: syntax + since
• Get key words list

Working with expression tokens

• Get missing user defined arguments
• Get missing user defined functions

Bugs fixed

• Dependent arguments and StackOverflowError [#35] (introduction of recursion calls counter)
• FunctionExtension.calculate [#32]

New regression tests - current tests coverage:

• 829 expression related tests
• 207 syntax related tests
• 51 api related tests
• 20 performance tests

Enjoy :-)