scientific calculator with engineering notation keys

[RoadRunner]

I am looking for good large display(graphical is preference) , scientific calculator with dedicated (or even with press of shift like in casio fx-991ms) keys.
i know it can be done using exponent key. I just love have dedicated keys.

every suggestion will be helpful.

[rstofer]

Are you talking about a dedicated key to enter the exponent like the HP48-GX 'EEX' key?

[2N3055]

Are you talking about a dedicated key to enter the exponent like the HP48-GX 'EEX' key?

No he means like this to have dedicated units buttons with shift like on this Casio .. mega, kilo, nano, pico...
It is useful ...
 

[rstofer]

Got it!

That would be a pretty nice feature for engineering students.  I sure haven't run across it.

[RoadRunner]

the only new calculator which i see has this feature is ,casio fx-991ms.

don't know why they dropped it on new models .

[mathsquid]

The casio fx-9750GII does engineering prefixes.  It doesn't have dedicated buttons, but the function keys below the screen can do it.

[kulky64]

the only new calculator which i see has this feature is ,casio fx-991ms.

don't know why they dropped it on new models .

I have fx-991MS and as far as i remember I never used this function. It takes two button presses to insert your prefix, same as pressing "EXP" button and some number.

[RoadRunner]

The casio fx-9750GII does engineering prefixes.  It doesn't have dedicated buttons, but the function keys below the screen can do it.

  this seems to be really nice calc. i think i found what i was looking for.

[AndyC_772]

the only new calculator which i see has this feature is ,casio fx-991ms.

don't know why they dropped it on new models .

The FX-115MS Plus has engineering units too.

It's never been a common feature and I don't know why either. Perhaps by far and away the biggest market for scientific calculators is for academic use, where engineering units just aren't used that frequently?

[setq]

Japanese still use calculators for a lot of things so always look in that direction.

[RoadRunner]

the only new calculator which i see has this feature is ,casio fx-991ms.

don't know why they dropped it on new models .

The FX-115MS Plus has engineering units too.

It's never been a common feature and I don't know why either. Perhaps by far and away the biggest market for scientific calculators is for academic use, where engineering units just aren't used that frequently?

you are right , sci calc are more of academic thing, because i have been using this feature since i was in college , i just seems to like it. 

Japanese still use calculators for a lot of things so always look in that direction.

[David Hess]

While they do not support the general use of the SI prefixes, one feature I have always liked in the HP48 and HP50 is that they support engineering notation where the power of 10 exponents are displayed in multiples of 3.

[setq]

50g is nice. It supports full SI unit notation and units are typed so you can enter "12_m" "1000_pm" / and it'll work out and factor the units.

Problem is that you end up in a unit hole occasionally where you end up with 1 square decameter amp volt to the power 2 and wondering where the hell that came from!

Actually I suddenly wish I hadn't sold mine.

[SteveyG]

I'm a big fan of the fx-991MS. I permanently have it in ENG mode, so results are always printed on the screen with actual engineering units from any calculation and the two button press for input is so fast.

My old Casio CFX-9850G had either 2 or 3 button input, but I don't remember it being able to display engineering units as the result by default, it'd use scientific notation but fixed at x10^-3, -6, -9, -12 etc.

[SteveyG]

the only new calculator which i see has this feature is ,casio fx-991ms.

don't know why they dropped it on new models .

I have fx-991MS and as far as i remember I never used this function. It takes two button presses to insert your prefix, same as pressing "EXP" button and some number.

The nice feature is you can permanently set it to output engineering units too!

[rstofer]

While they do not support the general use of the SI prefixes, one feature I have always liked in the HP48 and HP50 is that they support engineering notation where the power of 10 exponents are displayed in multiples of 3.

That is a very handy feature.  It's been decades since I seriously used FORTRAN and I discovered the other day that that feature has been added to FORMAT statements.  Very nice!

My HP 48GX will remain my favorite calculator despite owning an HP Prime and a TI NSpire.  Sure, the graphics are better on the NSpire and the Analyze Graph feature is magnificent but I am just plain FAST on the HP48 GX.

[Berni]

That would be pretty neat to have but as long as there is what they call "engineering notation" where the power of 10 exponents go in multiples of 3 i am fine with it.

I still use a basic TI 30X calculator. Gets the job done for everyday calculations. In uni i used to use a TI nspire, pretty impressive the stuff it can do but it takes forever to get anything done on it. Just waiting for the thing to boot takes a long time, later on that clumsy keyboard doesn't do any favors to speed. But when needing to solve the more fancy pants math you come across in school it helped a ton solving big convoluted systems of equations, working with matixes, complex number math etc. But in my day to day job it rarely goes beyond ohms law.

[David Hess]

50g is nice. It supports full SI unit notation and units are typed so you can enter "12_m" "1000_pm" / and it'll work out and factor the units.

Problem is that you end up in a unit hole occasionally where you end up with 1 square decameter amp volt to the power 2 and wondering where the hell that came from!

Actually I suddenly wish I hadn't sold mine.

But it does not support general use of the SI prefixes like Gaurav originally asked about.  The factor-label/dimensional-analysis notation works well enough but I find that it usually gets in the way so I only use it for conversions.

I would not mind being able to use SI prefixes in addition to engineering notation but I did some searching and apparently there is no way to add this to the HP48/HP50.  Just the other day I was using femtoamps and attoamps and this would have been handy.

While they do not support the general use of the SI prefixes, one feature I have always liked in the HP48 and HP50 is that they support engineering notation where the power of 10 exponents are displayed in multiples of 3.

That is a very handy feature.  It's been decades since I seriously used FORTRAN and I discovered the other day that that feature has been added to FORMAT statements.  Very nice!

My HP 48GX will remain my favorite calculator despite owning an HP Prime and a TI NSpire.  Sure, the graphics are better on the NSpire and the Analyze Graph feature is magnificent but I am just plain FAST on the HP48 GX.

The HP50G is a worthy replacement for the HP48 with a lot of improvements.  My only complaint about it is that despite having 40 times the processor performance, it has much greater maximum key-press latency.

[EEVblog]

FX-61F
It even has a parallel button!

[setq]

That's pretty neat! I had to write one when I had an HP50g

[RoadRunner]

FX-61F
It even has a parallel button!

i would love to have calc like this , too bad they don't make calc for electronics use any more. 

[2N3055]

FX-61F
It even has a parallel button!

It's in a good shape, like mine, I also have original etui for it.. First owner, it's been more than 25 years I guess... Still remember my professor's face when he saw it first time.. he let me use it after  he tried it, big smile on his face... he just asked where did I get it from ..

[Berni]

Yeah id buy one if i could find it.

Anyone here looking for a kickstarter idea?

[2N3055]

Yeah id buy one if i could find it.

Anyone here looking for a kickstarter idea?

I'w been thinking about it for some time.. For me it even wouldn't have to be so thin and light.. Just to have same functionality...

[EEVblog]

Yeah id buy one if i could find it.
Anyone here looking for a kickstarter idea?

I've always thought about it...