Check if a decimal number is effectively zero. Return true if the absolute value of the number is less than 0.001 (treating very small numbers as zero), false otherwise. Handle numbers with up to 4 decimal places.
Examples:
Input: num = 0.0009
Output: true
Explanation: 0.0009 is less than 0.001 in absolute value, so it is considered effectively zero
Input: num = -0.0015
Output: false
Explanation: -0.0015 has an absolute value greater than 0.001, so it is not considered zero
Apex Code Editor
Welcome to Lightning Challenge!
Create an Account
Sign up to track your progress, earn points, and compete with others. Your solutions will be saved automatically.
Create accountHow It Works
- • Write your solution in the code editor
- • Connect your Salesforce org to test
- • Submit to check if your solution passes
- • Use hints if you get stuck
Contest Alert
🏆 #CodeEveryDay Jan 2026
Contest runs January 1 - 31. Complete challenges to climb the leaderboard!
Points are calculated for challenges completed during the contest period.