Big class - big_dart library

Constructors

Big(dynamic n)
Big.zero({bool isNegative = false})

Properties

c ↔ List<int>: Returns an array of single digits
getter/setter pair
e ↔ int: Returns the exponent, Integer, -1e+6 to 1e+6 inclusive
getter/setter pair
hashCode → int: The hash code for this object.
no setteroverride
maxDp → double: The maximum value of dp and Big.dp.
final
maxPower → double: The maximum magnitude of the exponent argument to the pow method.
final
RM → RoundingMode: no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
s ↔ int: Returns the sign, -1 or 1
getter/setter pair

Methods

abs() → Big: Return a new Big whose value is the absolute value of this Big.
add(dynamic y) → Big: Return a new Big whose value is the value of this Big plus the value of Big y.
cmp(dynamic y) → int: Compare two Big
compareTo(Big other) → int: Compares this object to another object.
override
div(dynamic y) → Big: Return a new Big whose value is the value of this Big divided by the value of Big y, rounded, if necessary, to a maximum of Big.dp decimal places using rounding mode Big.rm.
eq(dynamic y) → bool: Return true if the value of this Big is equal to the value of Big y, otherwise return false.
gt(dynamic y) → bool: Return true if the value of this Big is greater than the value of Big y, otherwise return false.
gte(dynamic y) → bool: Return true if the value of this Big is greater than or equal to the value of Big y, otherwise return false.
lt(dynamic y) → bool: Return true if the value of this Big is less than the value of Big y, otherwise return false.
lte(dynamic y) → bool: Return true if the value of this Big is less than or equal to the value of Big y, otherwise return false.
mod(dynamic y) → Big: Return a new Big whose value is the value of this Big modulo the value of Big y.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
parse(Big x, String n) → Big: Parse the number or string value passed to a Big constructor.
pow(int n) → Big: Return a Big whose value is the value of this Big raised to the power n. If n is negative, round to a maximum of Big.dp decimal places using rounding mode Big.rm.
prec(int sd, [RoundingMode? _rm]) → Big: Return a new Big whose value is the value of this Big rounded to a maximum precision of sd significant digits using rounding mode rm, or Big.rm if rm is not specified.
selfRound([int? dp, RoundingMode? roundingMode]) → Big
sqrt() → Big: Return a new Big whose value is the square root of the value of this Big, rounded, if necessary, to a maximum of Big.dp decimal places using rounding mode Big.rm.
sub(dynamic y) → Big: Return a new Big whose value is the value of this Big minus the value of Big y.
times(dynamic y) → Big: Return a new Big whose value is the value of this Big times the value of Big y.
toNumber() → double: Return the value of this Big as a primitive number.
toString() → String: Return a string representing the value of this Big. Return exponential notation if this Big has a positive exponent equal to or greater than Big.pe, or a negative exponent equal to or less than Big.ne. Omit the sign for negative zero.
override
toStringAsExponential({int? dp, RoundingMode? rm}) → String: Return a string representing the value of this Big in exponential notation rounded to dp fixed decimal places using rounding mode rm, or Big.rm if rm is not specified.
toStringAsFixed({int? dp, RoundingMode? rm}) → String: Return a string representing the value of this Big in normal notation rounded to dp fixed decimal places using rounding mode rm, or Big.rm if rm is not specified.
toStringAsPrecision([int? sd, RoundingMode? rm]) → String: Return a string representing the value of this Big rounded to sd significant digits using rounding mode rm, or Big.rm if rm is not specified. Use exponential notation if sd is less than the number of digits necessary to represent the integer part of the value in normal notation.
valueOf() → String: Return a string representing the value of this Big. Return exponential notation if this Big has a positive exponent equal to or greater than Big.pe, or a negative exponent equal to or less than Big.ne. Include the sign for negative zero.

Operators

operator %(dynamic other) → Big: See Big.mod
operator *(dynamic other) → Big: See Big.times
operator +(dynamic other) → Big: See Big.add
operator -(dynamic other) → Big: See Big.sub
operator /(dynamic other) → Big: See Big.div
operator <(dynamic other) → bool: See Big.lt
operator <=(dynamic other) → bool: See Big.lte
operator ==(dynamic other) → bool: The equality operator.
override
operator >(dynamic other) → bool: See Big.gt
operator >=(dynamic other) → bool: See Big.gte
operator unary-() → Big

Static Properties

dp ↔ int: The maximum number of decimal places (dp) of the results of operations involving division: div and sqrt, and pow with negative exponents.
getter/setter pair
ne ↔ int: The negative exponent (ne) at and beneath which toString returns exponential notation. (Dart numbers: -7) -1000000 is the minimum recommended exponent value of a Big.
getter/setter pair
pe ↔ int: The positive exponent (pe) at and above which toString returns exponential notation. (Dart numbers: 21) 1000000 is the maximum recommended exponent value of a Big, but this limit is not enforced.
getter/setter pair
rm ↔ RoundingMode: The rounding mode (rm) used when rounding to the above decimal places.
getter/setter pair
strict ↔ bool: When true, an error will be thrown if a primitive number is passed to the Big constructor, or if valueOf is called, or if toNumber is called on a Big which cannot be converted to a primitive number without a loss of precision.
getter/setter pair