Complementary error function in java?

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Complementary error function in java?

Asked 8 years, 9 months ago

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How to calculate complementary error function in java ?

Friend, are there any examples of what you have already done? Or how is this function? It would be easier to help!

– Thiago Luiz Domacoski

2015/12/21 at 14:59
I edited the question take a look to see if it helps.

– Jose Vieira Neto

2015/12/21 at 15:04
@Thiagoluizdomacoski is this function of excel "erfc" want to know how to do it with java. its name is complementary error function. I’m not finding anything

– Jose Vieira Neto

2015/12/21 at 15:05
2

See there: https://commons.apache.org/proper/commons-math/jacoco/org.apache.commons.math3.special/Erf.java.html

– Alexandre Cartaxo

2015/12/21 at 15:06
1

By the way: erfc(x)=1-Erf(x).

– Alexandre Cartaxo

2015/12/21 at 15:07
Alexandre worked expensive . but I’m curious about one thing why we always have to subtract for less 1 ?

– Jose Vieira Neto

2015/12/21 at 15:26
1

@Josevieiraneto Because the function erfc(x) is defined from the function Erf(x). The first is just a convenience to not always write 1-Erf(x). The error function (Erf) allows calculating the probability according to the normal distribution. erfc is the complement of this probability.

– Alexandre Cartaxo

2015/12/21 at 15:39

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by Jose Vieira Neto • **2,560** points · Answer 1 · 2015-12-21T15:28:18+00:00

Add this dependency to the project.

   <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-math3</artifactId>
        <version>3.2</version>
    </dependency>

Just call this function.

double vlr = Erf.erf(x);
System.out.println("valor" + vlr);