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Ruby | Math erfc() function
  • Last Updated : 07 Jan, 2020

The erfc() function in Ruby returns the complementary error function of x. It accepts value in the range [-inf, +inf] and returns value in the range [0, 2].

Syntax: Math.erfc(value)

Parameter: The function takes the value whose complementary error function is to be returned.

Return Value: The function returns the complementary error function.

Example 1:



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# Ruby program for erfc() function 
  
# Assigning values
val1 = 0.98
val2 = -0.9
val3 = 6
val4 = 1
  
# Prints the erfc() value 
puts Math.erfc(val1)
puts Math.erfc(val2)
puts Math.erfc(val3)
puts Math.erfc(val4)

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Output:

0.16576849565979213
1.7969082124228322
2.1519736712498916e-17
0.15729920705028513

Example 2:

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# Ruby program for erfc() function 
  
# Assigning values
val1 = 0.67
val2 = -0.12
val3 = 2.4
val4 = 89
  
# Prints the erfc() value 
puts Math.erfc(val1)
puts Math.erfc(val2)
puts Math.erfc(val3)
puts Math.erfc(val4)

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Output:

0.3433722976996949
1.13475835181992
0.0006885138966450789
0.0

Reference: https://devdocs.io/ruby~2.5/math#method-c-erfc

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