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casio 9850 series wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 fx 9750g toggle fx 9750g subsection 1 1 power 1 2 display 1 3 memory 1 4 graphing 1 5 lists and tables 1 6 communications 2 fx 9750g plus cfx 9850g cfx 9950g series toggle fx 9750g plus cfx 9850g cfx 9950g series subsection 2 1 power 2 2 display 2 3 memory 2 4 software library 2 5 financial calculations 3 cfx 9970g 4 references 5 manuals 6 external links toggle the table of contents casio 9850 series 2 languages deutsch français edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikimedia commons wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia series of graphing calculators by casio this article needs more citations please help improve this article by adding citations to reliable sources unsourced material may be challenged and removed find sources casio 9850 series news newspapers books scholar jstor march 2026 learn how and when to remove this message casio cfx 9850g series black model of the cfx 9850gb plus with protective slide cover showing the menu based interface on its screen type programmable graphing manufacturer casio introduced 1996 discontinued 2008 successor 9860 series calculator entry mode infix display type lcd dot matrix display size 128 64 pixels programming programming language s casio basic user memory 32 64 kibibyte other power supply four aaa alkaline batteries weight 190 grams the casio cfx 9850g series is a series of graphing calculators manufactured by casio computer co ltd from 1996 to 2008 fx 9750g edit power edit the back of the device shows a slightly protruding battery case cover which slides out to reveal the compartment for the four aaa alkaline batteries used for primary power and a cr2032 lithium button cell used for memory backup when primary power is down or being changed the device consumes power at the rate of 0 06 w and turns itself off automatically after about 6 minutes of time spent without any keypad activity battery life for the primary power cells ranges from 300 hours lr03 battery to 200 hours r03 battery for continuous display of main menu backup cells last up to about 2 years each the calculators weigh about 190 grams including batteries and measure about 19 7 mm x 83 mm x 176 mm features include scientific calculations including calculus graphing and programming statistics and matrix operations display edit the display has a graphics resolution of 127 by 63 pixels the first row and column of pixels are unusable in graphing and a character resolution of 21 columns by 8 lines the bottom line is reserved for function key menu tips and the rest is available for the graphics and character display memory edit the calculators includes program capacity of 26 kilobytes this is divided among storage blocks for programs statistics matrices lists static and dynamic graphs and their associated settings functions recursions equations financial data and variables all of which are global these can be cleared individually or completely in the mem menu when saving files a file name uses 17 bytes of memory a command consumes 1 or 2 bytes graphing edit graphs can be drawn with split screen viewing of graphs as well as tables or zooms graphed areas can be shaded in customizable colors the graph viewport can be resized and shifted these settings can be saved for later retrieval and points along the graph curves can be traced graph solver tools can also be used to find useful points such as maxima minima and intersection points the calculator also has a special section for advanced conic section graphing dynamic graphing provides all the functionality of regular graphing but allows the binding of a variable in the graph equation to time over a value range lists and tables edit up to 36 lists can be stored and manipulated in various ways in the list manager the lists can also be used to feed data into inbuilt statistics operations producing various statistical figures performing regression analysis and generating graphs like scatter and box and whisker plots among others tables can be generated from functions recursive series can be generated and equations can be solved both simultaneous and polynomial communications edit the device can link up by cable to a computer fa 122 and fa 123 serial and fa 124 usb interface unit and cables or to another calculator sb 62 cable to transfer data such as programs equations graphs etc it can also connect to a casio label printer sb 62 cable transmission speed is stated as 9600 byte s the calculator can be connected to the ea 100 data logger which is used to read data such as temperature light intensity force voltage loudness ph and other such data in the same fashion as the texas instruments computer based laboratory 1 and various data loggers for use with the hewlett packard calculators sharp also makes such a tool 2 the serial link cable was designed and u s patented 5504864 by larry berg of purple computing it was manufactured by traveling software aka laplink com and later by purple computing for casio the common name for the cable used by the companies was pc link it has a 2 5mm stereo phono plug on one end the patented electronic circuit inside the plastic bump and a de 9f on the other for connecting to the serial port of a pc the circuit converts low voltage low power signals of the handheld device to be compatible with the levels and power of a pc s rs 232 serial port versions of the circuit were used by many companies from the early 1990s to bridge the rs 232 ttl voltage power gap fx 9750g plus cfx 9850g cfx 9950g series edit changes from fx 9750g include introduction of statistical tests 1 2 sample z 1 2 proportion z 1 2 sample t linear regression t chi square 2 sample f anova confidence interval calculations 1 2 sample z 1 2 proportion z 1 2 sample t generate graphs based on statistical distribution type normal probability density distribution probability inverse cumulative normal distribution student t probability density distribution probability chi square f binomial poisson geometric distribution probability financial calculations numerical integration includes gauss konrod rule option for cfx 9850gb plus and cfx 9950gb plus inclusion of software library the rounded rectangular keys were redesigned to become circular f1 f6 cursor keys or elliptical 2nd 5th rows from top or rounded elliptical triangle numeric keypad keys at the bottom 4 rows case gets rounder at the edges and concave along the longitudinal middle the casio cfx 9850g was introduced in 1996 as a higher end version of the fx 9750g series the cfx 9850g introduced a number of enhancements over that series the most noticeable being a color lcd capable of displaying orange green and blue the cfx 9850g was later replaced with updated models that added features and fixed bugs the cfx 9850g plus ga plus gb plus and gc plus the cfx 9850gb plus includes a built in software library and the cfx 9850gc plus increases memory from 32k to 64k two other models were sold alongside the cfx 9850g series the cfx 9950g series which has 64k of memory and the cfx 9970g which has symbolic algebra the series was discontinued with the cfx 9850gc plus in 2008 there are french versions where the ab c and exp buttons are labelled differently french versions 9750 graph 30 35 fx 8930gt 9850 9950 graph 60 65 cfx 9930gt 9940 9960 9970 graph 80 power edit power consumption is same as fx 9750 battery life for the primary battery ranges from 320 hours lr03 battery to 180 hours r03 battery for continuous display of main menu for continuous operation 5 55 minutes calculation display battery life ranges from 280 hours lr03 battery to 160 hours r03 battery display edit casio cfx 9850gc plus cfx models are capable of displaying three colors orange blue and green the colors are handled much like a multi level grayscale display in that altering the contrast of a pixel changes its color a light contrast displays orange then as the contrast increases the color becomes blue then green at a dark contrast memory edit the calculators include program capacity of 28 to 64 kilobytes of memory depending on model fx 9750g plus 28 000 cfx 9850g plus 30 000 cfx 9850gb plus 30 000 cfx 9850gc plus 61 000 cfx 9950gb plus 61 000 software library edit the cfx 9850gb plus and cfx 9950gb plus models have a built in software library consisting of programs that perform complicated calculations and data processing for example operations on differential equations digital caliper measurements capacitor charge curves figure rotations and riemann sums these are organized into six sub libraries five of them for mathematical computations and one for scientific instrumentation financial calculations edit a number of financial operations such as interest compounding and amortization are also provided cfx 9970g edit casio cfx 9970g changes from cfx 9950gb plus include cas algebra mode it is the first casio calculator to include cas and the first calculator with color screen and cas the algebra mode can perform a lot of symbolic manipulations like expand solve derivatives integrals definite or indefinite etc in the algebra mode the output is shown as natural screen feature later included for input or output in modern calculators like fx 991es reduced power consumption to 0 2 watt battery life for the primary battery ranges from 230 hours lr03 battery to 140 hours r03 battery for continuous display of main menu revert to the use of rounded rectangular buttons in all except direction keys a single elliptical pad replaces all 4 separate direction keys software library is not included the calculators includes program capacity of 60 kilobytes of memory references edit ti 92 plus user s manual cfx 9850 user s manual manuals edit manuals at support casio com external links edit universal casio forum v t e casio calculators basic arithmetic business 14 series 001 micro mini film card sl 800 hs 4 sl 450 financial fc 100 scientific non programmable al 1 al 10 fx 1 fx 39 fx 82 fx 82 solar fx 260 solar fx 915 fx 950 elektronika mk 71 elorg 71 rodon mk01 fx 991 fx 991s fx 995 v p a m s v p a m natural textbook display natural v p a m classwiz programmable basic python 301 fx 502p series fx 602p series fx 603p fx 3650p fx 3900pv fx 5800p fx 9860 series graphing fx 7000g fx 9850 series fx 9860 series fx cg20 cas graphing cfx 9970g classpad 300 fx cp400 classpad net watch ca 53w cfx 400 databank other fx 702p fx 850p st 1 fx es emulators related topics kansas city standard fa 1 fa 2 fa 6 spark printer fp 10 v t e casio products calculators graphic calculators v p a m scientific calculators 14 series 9850 series 9860 series algebra fx series classpad 300 fx 82 series fx 502p series fx 602p series fx 603p fx 702p fx 850p fx 3650p fx 3900pv fx 7000g fx 991es cameras exilim discontinued musical instruments synthesizers casiotone az 1 ctk 691 ctk 2080 cz synthesizers mt 40 sd synthesizers sk 1 vl 1 pianos organs privia software casio basic video game consoles pv 1000 loopy watches g shock master of g other ae 1000w ca 53w edifice f 91w databank wave ceptor other be 300 cassiopeia digital diary g zone commando pb 1000 pv 2000 pv 7 pv 16 pocket viewer tuc compuwriter other casio world open nec casio mobile communications 20 category commons retrieved from https en wikipedia org w index php title casio_9850_series oldid 1353260026 categories casio calculators graphing calculators products introduced in 1996 casio programmable calculators computer related introductions in 1996 hidden categories articles with short description short description is different from wikidata articles needing additional references from march 2026 all articles needing additional references this page was last edited on 9 may 2026 at 05 05 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents casio 9850 series 2 languages add topic