AndersonC said:
.........yeah 5, 12, 13 is ok but not as easy to remember as 3, 4, 5.
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Pythagorus Theory
- Thread starter Bright_Spark
- Start date
.........yeah 5, 12, 13 is ok but not as easy to remember as 3, 4, 5.
gosh! started a right topic here havn't i?
i'm able to do pythag and trig and am upto speed on BODMAS, im not actually thinking of taking a HNC...my mate is actually doing one at the moment and i was having a look through some of his work...more an interest thing rather than a desire to do a HNC.
i'm able to do pythag and trig and am upto speed on BODMAS, im not actually thinking of taking a HNC...my mate is actually doing one at the moment and i was having a look through some of his work...more an interest thing rather than a desire to do a HNC.
M
Moz
noseall,
your a sound good lad you
3,4,5 method.
I learnt this in juniors ..lol
....at 1st I thought this was gonna be a snotty high brow quiz that Bright_Spark was posting to spam us with his fanastic OUTSTANDING knowledge , .......but NO ,....well done ...good work fella
Nige F
theres a beast there as well ??........................an No ......Not my mucker Richie P on a ramble
your a sound good lad you
3,4,5 method.
I learnt this in juniors ..lol
....at 1st I thought this was gonna be a snotty high brow quiz that Bright_Spark was posting to spam us with his fanastic OUTSTANDING knowledge , .......but NO ,....well done ...good work fella
Nige F
theres a beast there as well ??........................an No ......Not my mucker Richie P on a ramble
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Works in 3D too !
Distance from origin to a point at x,y,z = SQRT(x²+y²+z²)
And the Cosines of the angles from the origin to the point relative to the positive axes are respectively
x / SQRT(x²+y²+z²)
y / SQRT(x²+y²+z²)
z / SQRT(x²+y²+z²)
No angle will be less than 0° nor greater than 180° (Cosines being -1 through 0 to +1)
Not much use to most, but invaluable when required to measure 'normal' to a surface in an engineering situation.
Distance from origin to a point at x,y,z = SQRT(x²+y²+z²)
And the Cosines of the angles from the origin to the point relative to the positive axes are respectively
x / SQRT(x²+y²+z²)
y / SQRT(x²+y²+z²)
z / SQRT(x²+y²+z²)
No angle will be less than 0° nor greater than 180° (Cosines being -1 through 0 to +1)
Not much use to most, but invaluable when required to measure 'normal' to a surface in an engineering situation.
Just realised I've forgotten a lot of the maths I learnt at school a couple of years back 
(shocking really, because I have only been out of school for 18 months or so)
Remember intergrating things that had logs in them, etc, I wouldn't have a clue now (though no doubt it would come back to me if I got hold of a text book)
I didn't work as hard as I should have done either
(shocking really, because I have only been out of school for 18 months or so)Remember intergrating things that had logs in them, etc, I wouldn't have a clue now (though no doubt it would come back to me if I got hold of a text book)
I didn't work as hard as I should have done either
I've been out of school 20 years, so all this is 
ing 
you might aswell say how long is a bit of string.
ing you might aswell say how long is a bit of string. 