Learning Nim - 4

Creating a simple Risk management calculation app

Let's create a simple app that calculates SLE (single loss expectancy) and ARO (Annual rate of occurrence)

Showing the full code:

import std/[strutils,strformat,linenoise,math]
# here we import our libraries or modules we want to use.

echo "Quantative Risk Analysis","\n" 
# Ask user for input to calculate SLE
echo "Calculate Single Loss Expectancy","\n"
echo "Enter Asset Value (as int 1..n) ","\n"
let asset = readLine(stdin).parseInt()

echo "Enter Exposure Factor as float 0.0..n) "
let ef = readLine(stdin).parseFloat()
clearScreen()

echo "Calculate Annual Rate of Occurence","\n"
echo "Enter ARO as float: "
let aro = readLine(stdin).parseFloat()
clearScreen()

# Calculate asset value * exposure factor
proc calculateSLE(asset: int, ef: float): float =
  return asset.float * ef

proc calculateALE(sle: float, aro: float): float = 
  return sle * aro
  
# store var calculation in sle variable
let sle = calculateSLE(asset, ef)
let ale = calculateALE(sle, aro)

echo "SLE is: ", fmt"{sle}", " ", "ARO is: ", fmt"{ale}"

Example running the compiled code: