— mm |
EARARARSRARn aT a a) Ora ad Sa SO CIICEICE SSSSSeees=
JUNGLE JIM FHULATOR NEUS GRAPHING DATA- PART 71
L a T F B RE p K T N Rift ic TIMELINEZ f{c£: is the yoint G NCW publication of three Timex, Sinclair User Groups inf the From Bilt Mitlter- San Francisca ¢ Oakland - San Bili has in Kis PoOssEesian a Jose Bay Areas. Old and hew prototype version of a@ Spectrum members are aiways wetcome — otringy Floppy and is 50 are experienced hardware ImvVestigating the Possibility af and softuisre hackers as wett modifying the design for the TS as beginners. Hope ta see 2Q@63. If you are interested or YOU at Gur next meeting. JUST Want more ainfermation you —
aT Ee LITTLE GOODIES eae FOR THE 2@66 a
1 From the E Bay Group- ber
ft
The October meeting wii by George Mockridge feature a Timex /Sinctair : Be ; SUAPSSALE. Members of alt three The Fattowing “tittle goodies” Bay aré€a 9fGups may Participate are a catitectisn GF tips, aids, For Free; Mmon-members wilt be hints, €tc. that Shoutd prove asked to pau $1 entrance. fee. keipfut if 2665 programming. If Thanx to mew member John Erikre you have a “izrtile goodie” far pursuing the idéa. Items of please send iti to TINELINEZ and interest seem ta be any and aii we Willi add it ta the tist. materials for the TS 1808 and su for the 2068, FEXFIF POKE SGHBS 14H F443 FFF FFF
7 TA nN-LINE BEEP UHEN NY REY PRESSED.
EEEEEE PORE S32692 ,.2°5S5 FFF FEETEFET
Recently celteased Spectrum eriu- USE BEFORE EVERY PRINT TO DEFERT iaiors and Tvs modems are tus SCROLL - rpmoducts that make tRe - SASS SB useful machine despite the $33724 POKE 236588 243434232322 bail-out af-Timex, I have re- PUT 2855 IN CHS MODE. cenily had the use of the Weset- ees = eas Sue. modem = rads B tie air FETIETET PORE 236506 ,@ EFEEFTEETFETFTIETIET Line use. The goad news if that TARKE 2868 OUT OF CAPS MODE. this Package including its Toe Mterm/T communications software FPTFIIE PRUSE GEA FFFTITITETELIF Gives You am easy-to-use and PRLUSE UNTIL ANY KEY PRESSED. efrective oackage for carmputer | P communications. I'd Like to de- ¥#* PORE 25553,8 j((W=1 TO GOS} +34 cribe some of mu adventures an TIRE THRY BR KEY NUST RE HELD the phone wires with Bubltetin DOUN BEFORE IY REPERTS. PREFER Bosrd Systems (BBS° 2: that im- 18-35 FOR TEXT. clude generai sé@rvice and asiica same specificaitiy far TyeyS users. | 44% POKE S3552,8 (8=1 TO 3} +237 : DELAY BETHUEEN SUCCESSIVE REPEATS Compuserve is ane of the atdest OF A KEY HELS BOUN. PREFER 3 FOR amd Largesi computer information TEXT . Services, There are Literati {AG s of sections available FEEFEEF UGH TEBHSC FFTFETFFFFIFEFII thai cover es huge range af int-. TYPE THIS IN IF YOU FIND YouUR- eresis ram camputers ta child SELF IN AN INPUT YOU CHN’T GET rSizing ta Livestack orice. GUT OF. You can Spend many haurs and 2 Bignificant part oF your incame FFEFTEIX BIN HFL7HE} FIFTFFFIFIE axeioring this huge service. #43 PRINI AT 8,8; OGQVER i; TYE if represented a2 pari c PAPER 3; INK G6; HE FTETEETI: the Computer and Electranice ALLOWS YOU Ti CHANGE PHRPER AND Magarine SPEeTISL Interest . JNK COLOR HITHDCUT CLERRING Group {sage CEM 450, se6€ Time- SCREEN. . Linez dune, ,i3Bd:, There if 3 date base For Tes t(#A 43 ha ch FFETE PRINT EE; AF @,.e2; “HI t2 VY F#¢3% PRINT 843; AY 1,5; “8Y" 2 continued on page 64 63. $FFEE PRHUSGE 464 245452 FFFFFFFF2 PRINTS GN LINES 22 ANG 2S.
IMELI NEZ
T/S GN-LINE centinved from pg 63
has questions and answers about
T4S5 products and peripherats,
The general bulletin boaard at CEM 45@ also has a lot of T¥5 info, Perhaps the most interesting feature is the on Line conference at 7 PM every Wied, mite. This if @ nation wide realtime converstion sbout
the Latest in HW, SW and rumors. The 2 times I have joined in featured info on the emulastar, nodem software and varicus other products. It is @ good place ita ask questions although you will Probably receive your answer on the bulletin board if it if 64 Long. The format takes a bit of getting used to g:nce there may conversations going on imn fFrant af you,
Tr m UTts “yt ~d
zebra Systems has an excetient T#5 BBS. The good news is that it i8 free but the bad mews 15 that’s in NY and requires a iong distance cali (718-296-2229! They Claim that Sprint and MCT work Fine to help s4VE money. zebra finances the BBS thru the sale of their products, so they make Bure yOu $ee@ their , Latest offerings. eee carry 8 g00d selection of TYS products which is 3 Great service For . Gut af the Wey users. The bulletin board, E-mail and TS Newsletter are all very good and much easier to use than Compuserve for the inexperienced Veer. Camputer Currents, the Local computer bi-weekly, has a Bay Area BBS listing int back of the paper, I recently spent a couple of evenings trying a Few out. Same a] the more interesting ones are:
ee au Neighborhood Story Board 415-364-4435
A callection of user submitted stories, Jokes, reviews and user participation events. e¢¢Farent’s Resource Net. #1 $15-847-2560 Children’s news, advicé rar parents and info om chitidcare and after-school pragrems. ##eePeacenet 415-438-0525 A BBS for the Peace Movement, This ens has mews and iainfso, an events calendar, political mews and eaae ine debate. ¥¢eLand of the Lost . £15-395-3630 This i158 @ service Far SF and
Fantasy gQame players.
Computer Currents has many other BBS’s Listed. Some are at general interest, but most af ‘(special interest. The BBS's use
anumber of different saorftware systems, However, the on eS lime instructions are usualtiy adequate. Many of these boagrds are free (see CO listing or disi. on far imfar.. They are an excellent introduction imnta the mechanics af cOMPUTET cammunica- tion, especiaity if you gener ate imterest in a particular service.
i et ed
Joel Brody a BOC
EBZUG gaember, Bill gtrick, (413) §22-3811 is looking for help €0 interface Olivetti PR23GQ print er to T/S 2068 using Tasman [n- cerface, Seems software for in-
terface will not initialize the
Printer and Printer commands all resist programming. However the printer performs well using Same Tasman interface/Tasword Two for straight text,
Nese this item!)
COHPUTER CALENDAR
SEPTEMBER
16 Peninsula Users Group (415) 359-3198 Meeting starts at 1 pM.
20 East Bay Z8@ User Group (415) 234-3318 Meetings starts at 7:38 pm.
25 Siticon Vattey Sinclaic/ Timex eer Pee Meeting Starts at 7 ees esa-28a88. X4S79
23 Watinut Creek School and Annual Computer Faire (415) 934-4636
OCTOBER we
6 Computer Swap America Santa Clara Co. Fairgrounds (415) 366-6644
18 Fast Bay Z3@ User Group Timex/Sinctlair Swap Meet (415) 234-3310 7:30 pm.
ai Peninsula User Group (415)3359-31983 1 Pm.
£36 Siticon Valley TS User Gp 30 (408) 738-2883 x4579 7 PM.
Times and locations may differ. please call first.
| IMELI NES BAY AREA USER GROUP INFORHAT ION 65, toca ee CD Aen SE EEEC CAE EF NA eg cane EBZUGS THT acess eA East Sey Zee. user Srour CT fat PT 4pe ss! Richeond, CA 54385 | ~ or i- Gir ee] LD (415) 234-3318 531-6566
PRESIDENT voet Brody aia RRS ee seeetis | 6RACKk Lint
EBZUG meets the third Thursday OF each month at:
VUEST GRANCH SERKELEY PUBLIC LIBRARY at the corner of University and san Pabto. Meetings start at 7:38 ps. Bring equipment and power Strips.
PENINSULA USER GROUP - PUG 263 Gateway No. i887 Pacifica, CA 34844
(415) 359-3198 of 333-2231
PRESIDENT George Mockridge Sessa: eaeesese =F rank Moura
PUG meets the third Sunday of each month at:
PENINSULA HOSPITAL meeting room in basement. 8ring equipment and extension cords if possibte. Meetings start at 1 pa.
UPCOMING MEETINGS:
PENINSULA HOSPITAL CANING SEPTEMBER |
Silicon Valtey SINCLAIR ABD User Group (SVU5,4gse)
Santa Clara, (483) 738-2883 x4575
PRESIDENT Rita Carr Ma eeesatseeergges. Fittl Hatter
SUS ABIG meets the tast Tvesday of each month at:
Dysan Corp. Headquarters 3281 Patrick Henry Drive Santa Clara, CR
(Ptease use North entrance by the toading dock}
UPCOMING MEETINGS: SEPTEMBER 25 OCTOBER 38
i MORE INFORMATION FROM RITA. —. * 66 IPFIEL| NE . CARR’S Nel EXCHANGE PROGRAN a LETTER IN OREGON | Une, Bano! OSe lay, tet cnane ee oe [ Feon suse naarr aw onz0 | ‘ BREAKING AND SAVING PROGRANS PC SME | FROM SUSAN HIATT IN Onz0 | BON SUSAN ATT 20 SHAD ew by Dennis worries
2. LQAD the Mo program (LORD ODE)
pocchara (or Une ROE Gane ueeo ae THE "BIN" FUNCTION ON THE T~S WRENN Osg- : Euratert (otese ane iPegoultre 9+ PEEK Ape uc apcesren, topsang, | ese caw fe user To convert aw 3 1 €y UME , ih ‘ ~ Mock ur the computer, or wiii ontgiovou fing @ tong group BINARY NUMBERS TC DECIMAL, FOR C commana. , 3 . These POCOT mE usually consist of @’s (say Se). - EXAMPLE, THE COMMANE o & €ef r€€ Programs tr tr Sreracittcdbsts het atest tke’? St BEVE “REEL EGLEtEedug PRINT BIN 1004 $1MP - a € § € Pra e computer tc (cad the SCREENS anda SRVE oF See eT em Ene WILL RESULT IN A & BEING DIE- Load the machine code prosran sddress from RAND USR tee Pac teat estes te teat aati geeistine tength ove | PAVED: P| i a cm | = mal bt hidden When YoU Break sh oe epg subtracting. UNFORTUNATELY, VARIABLES CANNES i * 7) iahe ta pes manr nH g4°0o! BE USED) THE IN FUNCTION Some. Change the paper color if een the we oh ae ACCEPTS ONLY 12 AND @¢ AS APGUH- ones The Tot touine Brbecelrk ccyne Se Bier ae MENTS. THE Mas IMUM NUMBER ZS $ 9 : oa at aa eee | top of memory 65535 65535 (BIN 2232224244444445). NC. - MEecthANE CocE (TE. gay Start address 7 presram neme from RAND USR 42020: BUT ALi ARITHMETIC FUNCTIONS ARE Batic - basic preosram €5535-42000 = 23535 . name d . then SAVE “NC"CODE POSSIBLE WITr THE BIN FUNCTION Screen - ESEcCreEEnN Etring 42000, 23535). program name INCLUDING POWERS AND ROOTS. THE : fte meleting the arove 2, LORD the Prosagram wntit the | : ond UERTE ENG cach step, COMMANE SCTEEN display if Gispiayed PFEeSs NEW and ENTER. Loap then BREAK and LIS Tris the program copy you just PRINT -EIN 11432 Listing witl give you the made and try it out. ot starting address Of the aD DISPLAYS -15. OTHER EXAMPLES 2 PRINT BIN 2140¢+EIN 011 OISFLAayYE asking today “Where’s yw i.e@. Tamex Sinctaic ine ord Party Support. Well here it PRINT (BIN 204:1S DISPLAYS is in a Program called gGBbs 12s. This Proaram ; * : , PLAY: 2668 and over BO dealers Stile 4. Supporting it. It includes PRINT BIN 12102 -BIN 101 DISPLAYS Product description, prices. and a Source catalog numbers. Send ee $5.@0 cash. theck. or Money THUS, THE BIN FUNCTI s Order to T.5. Services, &.G. Box VALUABLE TO THOSE LEARNING OF ww 15214 Red Bank, TN 37415, and WORKING WITH THE BINARY NUMBER Stop running up your phone bill cere } Includes Publications, Hardware, :
and software of att types,
Linda Banta of Banta Software Sends Two Frogr ams Ta Tell iF 20°40 is ON orf OFF
The REM statement is a short machine code routine which must be first line of the program. The other lines can be anywhere and c be modified to give other messages. Banta Software, SCSE Highws0e Orangeville, CA 95662 (916)722-4895 has many fine programs for TSZX line and is expanding to include the 2068.
Program: printer 1 REH <= CLS ?7ACS HTAN 1 REHM FLASH CLS G THEN LN <> 2 POKE 26516, 73 9996 LET prt=isR (S+PEEK 2363542 e996 LET PAT=USR 16514 SS sPEEK 23636 ) 9997 IF _PRT 1636S THEN PRINT Pct>16383 THEN - eTER A inter off” PEA "ee 9995 IF PRT ¢=16363 THEN PRINT prt<=126383 THEN PRINT INT . crinter on™ pee eres “® ga99 sToP 9999 STOP pati Woeeateee Parner FROM THE ATSU NEUSLETTER IN CENTRAL OHIO , 10 GON ERR GO TO 20 | 2O LET AS = INKEY¢$: PRINT A$: GO TO 20 Ne
Try ta stop it! Try to break, etc. I haven’t been able te ‘ston it. I think with a little thought it should be able to write E42IC pregrams that are very nearly unbreakable!
IMELINE |
THE JUNGLE JIM
wim ne eh
Wetcome to the TS1a0aa Jungle! Iogot same good responses fram you Last month including a Cali From Tennessee and a tetter fram Ohia! I’m happy to hear From you ma matter where you aré im the vungte!
This month Let’s Loak at 21) the GOTO etatement and (2) how the camputer stores 92 pragram Line im its memory,
The GOTO statement is cammon
ali BASICs. But T-rd1d0e BASIE Lets uou use 3 Line mumber, 4 Variable, ar and expressian which cam be converted ante a mumber., The praaram example ehows Row this Miaht ffiake programming easier.
GOTO BASIC Statement (“G” key, code=236). GOTO statement is used to exit from the normal program sequence to a specified line number. The format is:
GOTO (numeric expression)
(numeric expression) is the fine number in the program you want to execute next.
Example:
10 LET A$=INKEY$ 20 IF A$<"'1" OR A$>"2” THEN GOTO 10 30 GOTO (CODE A$-28)*100 100 PRINT “LINE 100” 110 GOTO 10 200 PRINT “LINE 200” 210 GOTO 10
In debugging, the GOTO statement can be used in direct mode to reenter a program at a desired point.
EY
Our advanced tapic for th month iss haw program Lines a stared in the Tr31l@aag’s memor: Hrter reading this section td LL 3
o pf In
os —
can take a {ook at pragram line by running this eroagerarn: 12Q@ REM FIRST LINE
20@ REM SECOND LINE
1@@@ FOR R=1658a TO ited. ee ene PRINT FR; “J PEER RCRA (RE
EK. Toae. NEXT &
Program Lines—Storage BASIC. All program lines are stored in the program area. This area starts at address 16509 and ends at D__FILE. D_FILE is a system variable which holds the address of the end of the program lines (which is the start of the display file area).
Each line is stored according to strict rules. The first byte holds the more significant byte of the program line number. The second byte holds the less significant byte. The next two bytes give the length of the line including the ENTER byte at the end of the line. (This time, the first byte is the less significant and the second byte is the more significant.) The text of the program line is next.
Here, keywords and functions are stored as singie- byte codes. The codes are automatically expanded
when the line is printed on the screen. The last byte
holds the ENTER character (118). To figure out
how much space each line will take up in memory,
count one byte for each time you press the
keyboard and something is added to your program
line. In general, keywords or functions take up one » byte each. Every letter you type in also takes up
one byte. The number of bytes in the text plus 5
equais the amount of memory space the program
line uses.
sections oF this articieé ar reprinted caurtesy af THE Bone COMPANY, Los Angetes, Perens t book THE TIMEX «SINCLAIR WSER ENCYCLOPEDIA by GS. Phiiiips | we March, L9se,
iT
CL iit Te
Copies of THE TIMEX/SINCLAIR USER'S ENCYCLOPEDIA are available for $13.08 (includes shipping and handling) from Jim March, 3216
Partridge Ave., Oakland, CA,,
94605 or for $14.95 plus tax at
bookstores (including Stacey's in Pato Alto and San Francisca},
IMELINEZ FE
SPECTRUM EMULATOR/CHAMELEON NEUS “have. crashed soon, after starting
action User review by Rick Link, EBZUG arcade types OF RECENT VINTAGE. ; The documentation explains that When Timex diétd, Loyat a new “osteda-pixel" $raPphics American Sinclar users we Fe routine that’ uses _one of the Farced Lo Laok €lsewhere ror anterrupt reqisters to time saftware Support. The rumored Frames works differently aon the Chameieon .4a Spectrum emutlatar. 2O68 than an the Spectrum due ta finally surfaced many months differences in US and European after the funeral. =F now own 4 electrical standards (S@ vs. 68 werseianm calted the EMU-1 which I cuctes 7} Wot ail Eragrams ise purchased for $68.88 taddresses this method. There aré probably wma bi attempt Lo answer afe: wh a t that over Be oe cer Spectrum programs won't work with the software will work on the EMU-i. EMU-i and if it the only way te iSpectrum ROM users claim to be aCcess Spectrum £artware. able to use amt even 9resater The last question is _ the percentage} What does work? egsier ta answe ft oe no, the ENMU-1 Here 16 tha t We “ye learned: is nat the only way to emulate a Spectrum. Binceé receiving my PROCRAM NAME TYPE NOTES cartridge the big news seems ta be series 3 spectrum ROMS . Maziacs fircade LOAD’ CODE SUPPOSedly wou Cam Simply Switch Spectrum version of Mazogs ROMS and turn your £2868 into a Mad Martha-2 Adventure Text Spectrum. Thifd Parity and graphics Manuracturers have aise Guasimoda / Arcade #CRASHED+s imtroduced Yaricgus boards Lo Hunchy Vetablea€4 va eles allow you to switch between Shear Panic Arcade generic Matter which tia ly Wou emuLlate. Monopati Board 4d users you won't be abie to fun every Inherit Simulation | program available for the Horace goes Sking) Available spectrum. on ta the First fir Cade for 2ess question: what won't work with Spinads Arcade <#Loaded the Evi) nee: Cee but would not respond to keuss 4 acGF t have Eas access to Galoaseness Arcade $LOGOaded that @xist nor the Funds that Reversi Board ‘ Such 4 Survey take. I did meet Uboat : Simulation Didnt Stuart Ree, & New Member of the have dac.. tLaoked good /comp tex Peninsula aT CEP wh o has Heathrow «Simulation recenttu taken up residence in complex air traffic controller the Bay Hrea, He used tea Live Battte o Ff Simuctation in England. He was quite happy Britian War game approxiamately 250 opectrum Pass Go clone titties that unmtal he converts Tasword sy Wiofed Pracesecor his Spectrum have lain idle. Available in USA The resuit of this meeting is 16/49 Magazine that Sicwly but surety we are Fantastic! Incuded at ieast 12 Finding What does work of his programs - reviews of others extensive library. Atic Atac Arcade / loadeéd. Second: the ony Excetltent Qraphics programs that have not run of )
—CONTINVED ON PAGE Of—
WE CLEANEDOUT FLECTRONIC v Xd? THE TIMEX ay, — mccihgaincy
= S/U FOR 1808071580
~ $1-$5 (Fasttoad) 64 Column Uord HODENS NOU HERE
Processor $49.95 FOR ALL TIMEX
SUPER LOW a | COMPUTERS
64 Column Screen COMPLETE SELECTION OF TIMEUSINCLAIR SOFTWARE Display $19.95 SUNSET eLecTA NICS
2254 Taraval 6t., San Franeleee, CA $4116 Monday trough Seturday 16-6 + Sunday 10-3
IMELI NE Me ~ GRAPHING DATA ConTinVED Fitom PAGE 10 — Point symbols. Unlike Quadra Chart, Graph-It can handle several
atts of data at. atime. Graph-It will calculate a best linear fit wiuation for the data. It is user-friendly, and runs @uite well on the TS 2862 even though written for the Spectrum.
Interested Perscns car obtain a tape copy of the Pro@ram at «4 meeting of EBZUGC.
The listing begins at 2900. and this allowa Graph-It to be MERGEd on top of the very Sood sPreadsheet Program Screencalc by Banta Software. This creats what ig to my knowledge the first integrated Program for a Timex Sinclair comPuter. One can 96 from graPhics to sPreadsheet by the graPhics menu, and from sPreadsheet to graphics by entering BASIC and usins GOTO 8800. Data car not directiy be transfered from spreadsheet to
graphics. but can be Printed first and then entered once in
graPhics. (Lishng +o be printed in tul{ next north |)
Followin9? are oraPhs PrePared by Quadra Chart and by GraPh It for the same six data Pairs, with ¥ in the 800 to 1200 rane. Each oraPh frogram has its advantages. but 1 definitely Prefer
Graph It. C Graphs on page 70)
MACHINE LANGUAGE PROGRAMMING ON THE TIMEX/SINCLAIR
A new book for the T/S 1008/1508 end the 7X61. This 250 page book describes how to do machine language prograaming within the environment of the 7/8 ROM.
Sample of topics covered: +The ROM (catalog of how to use 168
rout ines) +Passing parameters to/from subrout ines +Using the floating point calculator +Relocating/uploading/downloading +Read/write of cassette tapes +Interacting with machine code progress through BASIC and through the keyboerd
Available in October for $14.95 +61 SéH Advance order now and save $2
NY,
aN SiriusWare 6 Turning Mil] Road Lexington, MA 02173
The Castle Adventure
Text only
Alchemist Adventure Husic is above average
Wild West Arcade Fast Hera
Jet Set Arcade - Witty Adventure
Fxycelient! Over 4@ screens Good vse of saund,. Music Hobbit Adventure
Classic Spectrum Text. and Graphic reat time adventure
Dictator Simulation Spectrum version of ZA81 game Faster, fancier screens Basicaliysame game
3D Tamnx Arcade
Spectral Arcade good Invaders wersion af clasiic
Centipede Arcade
Spawn of Evil Arcades Adventure Complex shaat iff” uP Spectres Arcade Nice. mew ut
application of Pac Man Lauou
Watch rar 4 FuLtUTrEe review on using a Spectrum ROM and more news on programs that do aF da not work.
EMU-1 and EMU-2 avaitsbie from OOUG DEWEY. 2Q6 JAHES aT. CARRBORO, NC 27518 19191 029-3875 before O@ PM.
Sunset Electranmics iti the Citu tsee ad} shGuid airéeadyu be selling a switchable Spectrum 206s card that is plugged
imside.
If you wish to experiment with a Spectrum ROM bu yaursetfF Make sure it if @ #€fFfi€5 23
version and watch the price. TF ou receive any GF the many Fine nglish magazines that support the Spectrum you should be abte to finhd 4 Supplies that will send wou a ROM for close to : re
including postage: the s8a8m€ thing here can gc for as much as $30.
Schedule:
FULL iNewsletter and s/ Library priviteges) $15 749F
PARTIAL (Newsletter oniy) $18/yur For more information contact:
PENINSULA USER GROUP George Mockridge
263 Gateway No. if7
Pacifica, CH O4 944
(445) 359-3195
SILICON VALLEY SINCLAIR ABE: USER GROUP
Rita Carr
P.O. BOX 4133
Santa Ctara, CAR 5eo4 (400) 738-2088 X45709
FAST BAY ZBe@ USER GROUP
Joel Srody
30@7 Etston
Oakland, CA 94682
(415) 531-6566 oF 224-3231
IMELINEZ y (Graph-L+ listing nee mon with | oe | 1sample Chart g2$ample Chart
2x- ott eles 2
by Donald H. Marks
GRRFHING GAT
The ability to GraPh data is efserntial for scientist and
businessrersons. I will review two GraFhics Programe for the
Timex Sinclair 2069 © Quadra Chart and Graph-It. Quadra Chart is echart menew,dedata,zZ2copy
a Product of Psion Software, which allows the use of four
. ; TITLE : CAPACITANCE different chart formate: bar, Pie-line, Pie. and line. The
x ¥
Program is menu-driven and user-friendly. Data is entered in uP > 3182
to a tiaximunm of & x.y Pairs after selection of grarh tyre. Only é vet:
one data set can be uesd at a time, but it can be afPlied to one
or all graPhs. All four SgraFhs can aPFear on the screen eapaciTane
together. or blown uP singly. The y-element only of each data eel
set can be altered after entry, which is one of several |
drawbacks of the software. The x-axis can have divisions labeled t 2600 n
1 to & Neither axis can be labeled by the user. but the entire 2200 ff “hy
graPh can be titeled. The y-axis aprPears only in scale of ff “Syed | 2500}
1~1000, 1000 to 1 million, and millions, not very versitile. Pi
Particularly if oPeratin2 in overlaP regions such as S800 tf a ;
1268, K Hz A vers adequate Program is "GraPh-It",. which aPrears in the " APril-May issue of ZX-Computing. It only Performs Line-graPhs. | TEST NAME I5 : CAPACITANCE
THE SLOPE I35 : -240.5
ich can dis = Points or . r which can disPlay as Pointe or connected Points. Upper and lowe THE INTERCEPT IS : 3875
limits for x and y-axes are set by the user. as is the number of HENCE THE EQUATION I5 division lines for each axis. Both axes ard the grarh itself can Ye -248.5% X + 3575
THE CORRELATION COEFFICIENT IS be labeled. and sou have the choice from three characters for : -O,9S5587337
—-CONTIOVED ON PAGE ©64 —
GEQRSE : MOCKRIDGE - Gaede
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