Ruby - Math.erf() Method
The Ruby Math.erf() method returns the error function of the argument. The error function of x is defined as:
Error functions usually occur in probability, statistics and partial differential equation describing diffusion.
Syntax
Math.erf(x)
Parameters
x |
Specify the value. |
Return Value
Returns the error function of the argument.
Example:
In the example below, Math.erf() method returns the error function of the given value.
puts "Math.erf(-2) = #{Math.erf(-2)}"
puts "Math.erf(-1) = #{Math.erf(-1)}"
puts "Math.erf(-0.5) = #{Math.erf(-0.5)}"
puts "Math.erf(0) = #{Math.erf(0)}"
puts "Math.erf(1) = #{Math.erf(1)}"
puts "Math.erf(2) = #{Math.erf(2)}"
The output of the above code will be:
Math.erf(-2) = -0.9953222650189527 Math.erf(-1) = -0.8427007929497149 Math.erf(-0.5) = -0.5204998778130465 Math.erf(0) = 0.0 Math.erf(1) = 0.8427007929497149 Math.erf(2) = 0.9953222650189527
❮ Ruby Math Module
