How to resolve the algorithm Extreme floating point values step by step in the Julia programming language

Published on 22 June 2024 08:30 PM

How to resolve the algorithm Extreme floating point values step by step in the Julia programming language

Table of Contents

Problem Statement

The IEEE floating point specification defines certain 'extreme' floating point values such as minus zero, -0.0, a value distinct from plus zero; not a number, NaN; and plus and minus infinity. The task is to use expressions involving other 'normal' floating point values in your language to calculate these, (and maybe other), extreme floating point values in your language and assign them to variables. Print the values of these variables if possible; and show some arithmetic with these values and variables. If your language can directly enter these extreme floating point values then show it.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Extreme floating point values step by step in the Julia programming language

Explanation of the Julia Source Code:

1. Function showextremes():

  • This function demonstrates how Julia handles extreme numerical values like infinity (Inf), negative infinity (-Inf), and NaN (Not-a-Number).
  • It defines an array values containing these extreme values and then calculates and prints the results of dividing 1 by each value.

2. Calling showextremes():

  • The showextremes() function is called, and its output is printed.

3. Displaying Special Values with @show:

  • The @show macro is used to display the results of various operations involving Inf and NaN.
  • It provides a more detailed representation of these values compared to the standard output.

4. Arithmetic Operations with Inf and NaN:

  • The @show macro is used to display the results of various arithmetic operations involving Inf and NaN.
  • These operations produce special values following specific mathematical rules:
    • Inf + 2.0 results in Inf.
    • Inf + Inf results in Inf.
    • Inf - Inf results in NaN.
    • Inf * Inf results in Inf.
    • Inf / Inf results in NaN.
    • Inf * 0 results in NaN.

5. Equality Comparisons with 0 and NaN:

  • The == operator is used to compare 0 with -0, and NaN with NaN.
  • In Julia, 0 and -0 are considered equal, while NaN values are always unequal.

Source code in the julia programming language

function showextremes()
  values = [0.0, -0.0, Inf, -Inf, NaN]
  println(1 ./ values)
end

showextremes()

@show Inf + 2.0
@show Inf + Inf
@show Inf - Inf
@show Inf * Inf
@show Inf / Inf
@show Inf * 0
@show 0 == -0
@show NaN == NaN
@show NaN === NaN


  

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