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#2 2012-01-10 20:23:03
- VirtualClown
- Scratcher
- Registered: 2011-08-05
- Posts: 55
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
That means about 0.0000000000000000000000122 etc. It's very weird, and it makes it annoying when multiplying sin/cos by enormous numbers.
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#3 2012-01-13 18:38:57
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
This is larger than you think, actually.
If you have
sin of 3.14
you get http://i.imgur.com/SmaaR.jpg
when you set a variable to it, you get http://i.imgur.com/Zj9a5.jpg
Learning to Program in a Nutshell: "You're missing a closing parentheses" - LS97
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#4 2012-04-01 15:01:50
- 360-International
- Scratcher
- Registered: 2011-07-17
- Posts: 100+
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
SJRCS_011 wrote:
This is larger than you think, actually.
If you have
sin of 3.14
you get http://i.imgur.com/SmaaR.jpg
when you set a variable to it, you get http://i.imgur.com/Zj9a5.jpg
The variable watcher rounds to the nearest 0.1, but the actual variable is equal to sin(3.14).
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#6 2012-04-01 15:16:56
- 360-International
- Scratcher
- Registered: 2011-07-17
- Posts: 100+
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
roijac wrote:
Aw, I was gonna say that.
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#7 2012-05-20 17:57:56
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
You mean offline? Well, that's normal. Squeak can only report values of trigonometric functions exactly up to a certain point. From that point on, its accuracy diminishes.
In 2012, scientists at the LHC discovered the Higgs boson, which explains the source of the masses of the W+, W-, and Z bosons, as well as fermions.Offline
#8 2012-06-04 14:56:38
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
It also happens with the
([tan v] of (180))block!!!
In 2012, scientists at the LHC discovered the Higgs boson, which explains the source of the masses of the W+, W-, and Z bosons, as well as fermions.Offline
#9 2012-06-11 04:19:35
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
3sal2 wrote:
It also happens with the
([tan v] of (180))block!!!
roijac wrote:
Experienced 2.0 Tester: Ask me questions!
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#10 2012-06-25 18:55:52
- scratchisthebest
- Scratcher
- Registered: 2009-02-08
- Posts: 500+
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
Yeah, with computers, you only get so many significant decimal places. Anything past that amount is just garbage. On 64bit systems, you might get different results.
bye 1.4, we all loved you. but we all outgrew the site. 2.0 is a welcome change.
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#11 2012-07-10 14:04:32
Re: sine and cosine calculations don't work right at 180(sin) and 90(cos)
It's currently the maximum computer accuracy. Think about Planck's constant (about 6*10^-34).
In 2012, scientists at the LHC discovered the Higgs boson, which explains the source of the masses of the W+, W-, and Z bosons, as well as fermions.Offline
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