BigNumber Library

In this chapter we will learn about using the Big Number library.

Loading the library

Before using the next function load the bignumber.ring library

load "bignumber.ring"
# Use Big Number library functions

Examples

Using the BigNumber library we can do arithmetic operations on huge numbers.

Example:

load "bignumber.ring"

num1 = "62345678901234567891678345123456789"    ### Big
num2 =  "1237894567890123419871236545"          ### Small
num3 =     "64"                                 ### Divide Small
num4 = "765432"
num5 =      "3"                                 ### Power

? "Add big numbers:"
a1 = new BigNumber(num1)        a1.Print()
a2 = new BigNumber(num2)        a2.Print()
a3 = a1 + a2                    a3.Print() ? nl

? "Substract big numbers:"
a1 = new BigNumber(num1)        a1.Print()
a2 = new BigNumber(num2)        a2.Print()
a3 = a1 - a2                    a3.Print() ? nl

? "Multiply big numbers:"
a1 = new BigNumber(num1)        a1.print()
a2 = new BigNumber(num2)        a2.print()
a3 = a1 * a2                    a3.print() ? nl

? "Divide big numbers:"
a1 = new BigNumber(num1)        a1.print()
a2 = new BigNumber(num2)        a2.print()
a3 = a1 / a2                    a3.print() ? nl

? "Divide big numbers: by very small number"
a1 = new BigNumber(num1)        a1.print()
a2 = new BigNumber(num3)        a2.print()
a3 = a1 / a2                    a3.print() ? nl

? "Power of big number:"
a1 = new BigNumber(num1)        a1.print()
a2 = new BigNumber(num5)        a2.print()
a3 = a1 ^ a2                    a3.print() ? nl

Output:

Add big numbers:
62345678901234567891678345123456789
1237894567890123419871236545
62345680139129135781801764994693334


Substract big numbers:
62345678901234567891678345123456789
1237894567890123419871236545
52345687663340000001554925252220244


Multiply big numbers:
62345678901234567891678345123456789
1237894567890123419871236545
77177377243260150103462178714197454736432472780119682305154005


Divide big numbers:
62345678901234567891678345123456789
1237894567890123419871236545
50364288


Divide big numbers: by very small number
62345678901234567891678345123456789
64
974151232831790123307474142554012


Power of big number:
62345678901234567891678345123456789
3
242336636261471172092347146031727004 (Output continue in next line)
371698195628343934238988256152289508 (Output continue in next line)
493964611043228971692389860897069

BigNumber Functions

The library contains the next functions

FuncAdd(num1,num2)
FuncSubtract(num1,num2)
FuncCompare(num1,num2)
FuncDivide(num1,num2)
FuncMultiply(num1,num2)
FuncPower(num1,num2)
FuncBinaryToDecimal(num1)
FuncDecimalToBinary(num1)
printBinaryDigits(binList)
printDecimalDigits(decList)

BigNumber Class

The library contains the next class

class BigNumber
        func init aPara
        func operator cOperator, Para
        func print
        func value

Library Source Code

You can see the library source code in : ring/libraries/bignumber folder

Source Code : https://github.com/ring-lang/ring/blob/master/libraries/bignumber/bignumber.ring