Crate break_eternity

A numerical library to represent numbers as large as 10^^1e308 and as ‘small’ as 10^-(10^^1e308).

Examples

use break_eternity::Decimal;

let a = Decimal::from_number(1.0);
let b = Decimal::from_number(2.0);

let c = a + b;
assert_eq!(c, Decimal::from_number(3.0));

Structs

Decimal

A Decimal number that can represent numbers as large as 10^^1e308 and as ‘small’ as 10^-(10^^1e308).

Enums

BreakEternityError

Error type for all errors in this crate.

Constants

EXPN1

exp(-1)

EXPONENT_LIMIT

Exponent limit to increase a layer (9e15 is about the largest safe number)

FIRST_NEG_LAYER

At layer 0, smaller non-zero numbers than this become layer 1 numbers with negative mag.

LAYER_REDUCTION_THRESHOLD

Layer reduction threshold

MAX_ES_IN_A_ROW

Amount of Es that will be printed in a string representation of a Decimal.

MAX_FLOAT_PRECISION

Maximum number of digits of precision to assume in a float

MAX_POWERS_OF_TEN

Maximum number powers of 10 that will be cached.

NUMBER_EXP_MAX

Largest exponent that can appear in a number.

NUMBER_EXP_MIN

Smallest exponent that can appear in a number.

OMEGA

W(1, 0)

TWO_PI

2*PI

Functions

decimal_places

Truncates the given number to the given number of significant digits and rounds, if necessary.

sign

Returns the sign of the number.

to_fixed

Formats the given number to the given number of significant digits.