Sorry your browser is not supported!

You are using an outdated browser that does not support modern web technologies, in order to use this site please update to a new browser.

Browsers supported include Chrome, FireFox, Safari, Opera, Internet Explorer 10+ or Microsoft Edge.

AppGameKit Classic Chat / Working with currency

Author
Message
blink0k
Moderator
11
Years of Service
User Offline
Joined: 22nd Feb 2013
Location: the land of oz
Posted: 7th Jun 2018 03:54
Link
I'm trying to work with currency and when i convert values to floats i get anomalies like -287.61 being converted to -287.609985
Is there anyway around this?
Does anyone have any ideas how i can get accurate values and work with them?
Back to top
Profile PM
IronManhood
9
Years of Service
User Offline
Joined: 6th Feb 2015
Location: US
Posted: 7th Jun 2018 09:39
Link
Tier 2 maybe..
Back to top
Profile PM
BatVink
Moderator
21
Years of Service
User Offline
Joined: 4th Apr 2003
Location: Gods own County, UK
Posted: 7th Jun 2018 10:59
Link
The answer is correct for a single-precision float
Tier 2 would be closer, but still not exactly -287.61. Neither will ever give you the exact value

There is enough accuracy in single-precision to round it to 2 decimal places and always get the correct answer.

You can perform any calculations by multiplying first by 100 and rounding - round(value# * 100)

You can display accurately using str(value#,2)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Quidquid latine dictum sit, altum sonatur
TutCity is being rebuilt
Back to top
Profile PM Email
blink0k
Moderator
11
Years of Service
User Offline
Joined: 22nd Feb 2013
Location: the land of oz
Posted: 7th Jun 2018 23:33
Link
Thanks BatVink.
I have one other question;
I have a typed table containing various fields and i would like to sort it by any of the fields so i have a sort string as the first field of the type.
When i am sorting by a number i have to convert it to a string. How can i represent a number in a string so it will work when the number could be negative or positive. ie -1000 being less than -100
Back to top
Profile PM
IronManhood
9
Years of Service
User Offline
Joined: 6th Feb 2015
Location: US
Posted: 8th Jun 2018 05:19
Link
Well I would suggest writing a custom sorting function for each field so that you can get exactly what you want. The .sort() method is very basic.
Back to top
Profile PM
Back to top

Login to post a reply

Server time is: 2024-11-23 20:43:51
Your offset time is: 2024-11-23 20:43:51