bignum-arith: Arithmetic operations

In bignum: Arbitrary-Precision Integer and Floating-Point Mathematics

Arithmetic operations

Description

biginteger and bigfloat vectors support the standard arithmetic operations. The base R documentation can be found at Arithmetic.

Value

These arithmetic operations are type-stable, which means the output type depends only on the input types (not the input values). A biginteger vector is returned when the result must be an integer (e.g., addition of two integers). Otherwise a bigfloat vector is returned.

The following table summarizes the return type for each combination, where "integer-like" refers to integer and biginteger vectors and "float-like" refers to double and bigfloat vectors.

Input 1	Operator	Input 2		Result
Integer-like	+, -, *, ^, %%	Integer-like	->	biginteger
Integer-like	+, -, *, ^, %%	Float-like	->	bigfloat
Float-like	+, -, *, ^, %%	Integer-like	->	bigfloat
Float-like	+, -, *, ^, %%	Float-like	->	bigfloat
Any	/	Any	->	bigfloat
Any	%/%	Any	->	biginteger

See Also

Other bignum operations: bignum-compare, bignum-math, bignum-special

Examples

x <- biginteger(5)
y <- bigfloat(2)

+x
-x
x + y
x - y
x * y
x / y
x^y
x %% y
x %/% y

bignum documentation built on May 4, 2023, 9:10 a.m.