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Idle Banter For non SV and non bike related chat (and the odd bit of humour - but if any post isn't suitable it'll get deleted real quick). There's also a "U" rating so please respect this. Newbies can also say "hello" here too. |
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26-07-11, 08:48 PM
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#11 |
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Re: Maths Help.
I still have my old slide rule
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26-07-11, 10:01 PM
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#12 | |
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Member
Mega Poster
Join Date: Mar 2004
Location: Not in Yorkshire. (Thank God)
Posts: 4,116
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Re: Maths Help.
Quote:
Multiplication/division any root the rest I have forgotten how to use logarithmic scales
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Not Grumpy, opinionated. |
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26-07-11, 10:20 PM
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#13 |
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Re: Maths Help.
Sure i've a book of logarithims up the loft. remember to show your working.
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26-07-11, 10:25 PM
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#14 | |
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Re: Maths Help.
Quote:
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26-07-11, 11:21 PM
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#15 |
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Member
Join Date: Jul 2010
Location: Devon
Posts: 876
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Re: Maths Help.
18x^3+340x-6351=0 is a cubic equation so has three roots. However, two of them are complex roots:
6.180531691302737 -3.0902658456513685+6.89478918309233i -3.0902658456513685-6.89478918309233i Use the Cubic solver here Last edited by mikerj; 26-07-11 at 11:22 PM. |
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27-07-11, 08:46 AM
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#16 | |
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Guest
Posts: n/a
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Re: Maths Help.
Quote:
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27-07-11, 12:14 PM
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#17 |
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Member
Join Date: Mar 2011
Location: Moved again now in Bracknell
Posts: 981
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Re: Maths Help.
What is ^3 mean?
Is it 18x cubed?
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"Somewhere between happy and total f**kin wreck" Last edited by Winder; 27-07-11 at 12:16 PM. |
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27-07-11, 12:18 PM
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#18 |
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Member
Mega Poster
Join Date: Mar 2004
Location: Not in Yorkshire. (Thank God)
Posts: 4,116
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Re: Maths Help.
Shorthand used to signify cubed etc. x³ is difficult to type unless you know all the alt characters and hope the reader has the correct character set.
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Not Grumpy, opinionated. |
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27-07-11, 02:53 PM
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#19 |
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Member
Join Date: Jul 2010
Location: West Mids
Posts: 854
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Re: Maths Help.
Plus when you find an online calculator like those posted above (Or mathcad if you can afford the license) it often won't recognise x³ so asks you to input it as x^3
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