230 - 220 x 0.5

Just busted out the 1996 9850G.. (biggest waste of money ever.. too faffy for normal use, too clunky for anything else!)

SdtPc7lL
'32KB ought to be enough for anybody'
 
Just busted out the 1996 9850G.. (biggest waste of money ever.. too faffy for normal use, too clunky for anything else!)

SdtPc7lL
I've been eying up old school sci calculators on ebay..

I've been told that I don't need anymore...
"But how am I going to solve the questions in my maths book?"
"You don't have any maths books!"
"I would if I had a calculator to solve them with!"

But yeah.. I've been looking at smp yellow maths books on ebay too... lol..
 
I've been eying up old school sci calculators on ebay..

I've been told that I don't need anymore...
"But how am I going to solve the questions in my maths book?"
"You don't have any maths books!"
"I would if I had a calculator to solve them with!"

But yeah.. I've been looking at smp yellow maths books on ebay too... lol..
I literally just bought an old Casio FX-451 on eBay after this thread..

WxbIjmyL

(sellers image)

A bit worrying it is showing all '8's but the ad says its fully function and for £25 delivered, it'll be interesting to see! *That and the white marks on the spine, looks to be either painted on as it's not white underneath..

All the cool kids had these when I was at school, so a big dose of nostalgia as I always wanted one..

Being from a family with little money at that time, I had this cheap Sharp knock-off that was branded 'Shrap'.. and crucially it was lacking the pi button, so I had to memorise Pi to enough decimal places, just off the top of my head (genuinely) 3.141592654..

The Casio 9850G's are £12-£15 on fleabay! Unbelievable really, way better condition than my own (which to be fair had 4 years of uni!)
 
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I don't care.

This'll be one of those BODMAS or PEBMUD or RAGMER things which 'everyone' claims was taught at school but it clearly wasn't. If it doesn't have brackets, I have literally no way to interpret what comes first.
If you're not taught order of operations then even basic maths doesn't work.

And unless you went through school before the 16th Century nothing has changed.
 
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I literally just bought an old Casio FX-451 on eBay after this thread..

WxbIjmyL

(sellers image)

A bit worrying it is showing all '8's but the ad says its fully function and for £25 delivered, it'll be interesting to see! *That and the white marks on the spine, looks to be either painted on as it's not white underneath..

All the cool kids had these when I was at school, so a big dose of nostalgia as I always wanted one..

Being from a family with little money at that time, I had this cheap Sharp knock-off that was branded 'Shrap'.. and crucially it was lacking the pi button, so I had to memorise Pi to enough decimal places, just off the top of my head (genuinely) 3.141592654..

The Casio 9850G's are £12-£15 on fleabay! Unbelievable really, way better condition than my own (which to be fair had 4 years of uni!)

Oh... How I wish I could calculate pi... but.... How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics

Jokiing aside.. pre 2000 electronics is the best, I've been looking at getting a psion. I managed to pickup a sharp databank calculator new old stock from a car boot for a pound and spent an evening programing all my phone numbers in to it. Looking for a techinics portable CD player at the moment.. my shopping list is endless.
 
I don't care.

This'll be one of those BODMAS or PEBMUD or RAGMER things which 'everyone' claims was taught at school but it clearly wasn't. If it doesn't have brackets, I have literally no way to interpret what comes first.
I was definitely taught it at school - maybe not until GCSEs though.
 
Has anyone actually had to use any of that crap since school?
Does anyone else care to be reminded about it 10, 20, 30+ years later?


Feed him to the pigs!
I do use maths a fair bit (I'm an engineer (chartered)) but also just for generall business use I find it helps create far better analytical summaries being able to use a bit of basic mathematics.
 
standardisation
Left to right wasn't standard enough? Considering BODMAS is like some from the middle some from the right some from the left.. Otherwise you should write your math in BODMAS order.

I'm not a mathematician but it seems stupid to me.
 
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Yeah, for 1 + 1 = 2, writing from left to right is easy, but when you start throwing in brackets, orders and algebra, it would get complicated without some rules, and you'd also be rewriting things constantly as you solved/refactored things to keep making them left to right friendly, where as BODNAS allows you to easily substitute things and move then around without having to rewrite everything..

I get it though, if you just stick to the basics it adds nothing at all and can make it apparently worse, but as someone that has to use lots of lengthy equations when designing complex, life sustaining medical devices, it gives a consistent framework to deal with equations and ensure you always get a consistent answer no matter who is reading the equation.
 
Looks like it was added to the national curriculum in 1988 so yeah, you're younger than me and it would have been included.

I did O levels and had been taught order of operations long before then.

Are you seriously telling me that if you were give 2 x 3 + 2 x 4 you would get 32 and not 14?
 
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