Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 13 Next capture
2021 2022 2023
1 capture
13 Jun 22 - 13 Jun 22
sparklines
Close Help
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
0
Question by deimosaffair · Feb 06, 2013 at 09:32 PM · floatmathfprecision

float precision, again

Hi, my first post here, yey!!

i read all i could find about floats, doubles, conversion, precision, but couldn't find anything to help me. so here goes...

i have this code:

var myvar : float = 0.0;

print("value:" + myvar + " really?"+Mathf.Approximately(myvar, 0.0));

expected result? myvar should be 0.0, approximately should be true. instead, myvar is 0.00xxxxxx and approximately evaluates to false. i have tried to floor it, round it, floor( myvar * 1000) / 1000, all i could remember, myvar is never zero.zero

how can i assign a float a simple value (0.0 1.0 etc) and have it evaluate to exactly that value?

Comment
Add comment · Show 2
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Loius · Feb 06, 2013 at 09:51 PM 0
Share

works for me

     var x : float = 0.0;
     Debug.Log(x + " approximately zero? " + $$anonymous$$athf.Approximately(x, 0.0) );

shows "0 approximately zero? True"

what have you done to your poor computer

avatar image deimosaffair · Feb 06, 2013 at 11:32 PM 0
Share

right, it doesn't add up. even broken .dlls have crossed my $$anonymous$$d.but it seems there's always some lack of precision. another thing that is failing me is (Time.deltatime - Time.deltatime) == 0.0

i've tried other programs to see if i could get the same problem, but they return proper results. how much more weird can it get?

0 Replies

· Add your reply
  • Sort: 

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Follow this Question

Answers Answers and Comments

10 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Comparing float value to zero 1 Answer

Show 1 decimal only when printing a float 1 Answer

Mathf.Lerp not working as expected 2 Answers

Convert double to float for Vector3 1 Answer

maximum distance from origin (float precision) 1 Answer


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges