The erf() function in Ruby returns the error function of x. It accepts value in the range [-inf, +inf] and returns value in the range [-1, +1].
Syntax: Math.erf(value)
Parameter: The function takes the value whose error function is to be returned.
Return Value: The function returns the error function.
Example 1:
# Ruby program for erf() function # Assigning values val1 = 0.98 val2 = -0.9 val3 = 6 val4 = 1 # Prints the erf() value puts Math.erf(val1)
puts Math.erf(val2)
puts Math.erf(val3)
puts Math.erf(val4)
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Output:
0.8342315043402079 -0.7969082124228322 1.0 0.8427007929497149
Example 2:
# Ruby program for erf() function # Assigning values val1 = 0.67 val2 = -0.12 val3 = 2.4 val4 = 89 # Prints the erf() value puts Math.erf(val1)
puts Math.erf(val2)
puts Math.erf(val3)
puts Math.erf(val4)
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Output:
0.6566277023003051 -0.13475835181992007 0.999311486103355 1.0