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Perl | Math::BigInt->binf() method

Last Updated : 03 Oct, 2019
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Math::BigInt module in Perl provides objects that represent integers with arbitrary precision and overloaded arithmetical operators. binf() method of Math::BigInt module is used to create a new object with value infinity and if used on an existing object, it sets it to infinity.
Syntax: Math::BigInt->binf() Parameter: plus or minus: to set the sign of infinity as '+' or '-' Returns: object with value inf
Example 1: perl 
#!/usr/bin/perl  
  
# Import Math::BigInt module 
use Math::BigInt; 
 
# Create a BigInt object 
$x = Math::BigInt->binf();

# Object created with binf()
print("$x\n");

# Create a BigInt object 
$x = Math::BigInt->binf('-');

# Object created with binf()
print("$x");
Output: 
inf
-inf
Example 2: perl 
#!/usr/bin/perl  
  
# Import Math::BigInt module 
use Math::BigInt; 
  
# Specify number 
$num = 78215936043546; 
  
# Create BigInt object 
$x = Math::BigInt->new($num); 

# Object before function call
print("Before function call: $x\n"); 

# Calling the function
$x->binf();

# Object after function call
print("After function call: $x");
Output: 
Before function call: 78215936043546
After function call: inf
Example 3: perl 
#!/usr/bin/perl  
  
# Import Math::BigInt module 
use Math::BigInt; 
  
# Specify number 
$num = 78215936043546; 
  
# Create BigInt object 
$x = Math::BigInt->new($num); 

# Object before function call
print("Before function call: $x\n"); 

# Calling the function with '-' sign
$x->binf('-');

# Object after function call
print("After function call: $x");
Output: 
Before function call: 78215936043546
After function call: -inf

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