Contents

Chapter 13

 

Programming Features ...........................................................................................

202

1.

Try it! .....................................................................................................................

202

2.

Programming Hints ...............................................................................................

204

3.

Variables ..............................................................................................................

206

 

Setting a variable ................................................................................................

206

4.

Operands .............................................................................................................

206

 

Comparison operands ........................................................................................

206

5.

Programming commands ......................................................................................

207

 

A PRGM menu ....................................................................................................

207

 

B BRNCH menu ..................................................................................................

209

 

C SCRN menu ....................................................................................................

209

 

D I/O menu .........................................................................................................

209

 

E SETUP menu ..................................................................................................

210

 

F FORMAT menu ................................................................................................

211

 

G S_PLOT menu ................................................................................................

213

6.

Flow control tools ..................................................................................................

214

7.

Other menus convenient for programming ..........................................................

216

 

H COPY menu ....................................................................................................

216

 

VARS menu .......................................................................................................

217

8.

Debugging ............................................................................................................

219

9.

Sample programs ..................................................................................................

220

Chapter 14

 

OPTION Menu ...........................................................................................................

222

Accessing the OPTION Menu ....................................................................................

222

 

1.

Adjusting the screen contrast ......................................................................

222

 

2.

Checking the memory usage .......................................................................

222

 

3.

Deleting files ..................................................................................................

224

 

4.

Linking to another EL-9900 or PC ...............................................................

224

 

5.

Reset function ...............................................................................................

227

Appendix...................................................................................................................

228

1.

Replacing Batteries ...............................................................................................

228

2.

Troubleshooting Guide ..........................................................................................

231

3.

Specifications .......................................................................................................

233

4.

Error Codes and Error Messages ........................................................................

235

5.

Error Conditions Relating to Specific Tasks ........................................................

237

 

1.

Financial .......................................................................................................

237

 

2.

Error conditions during financial calculations ..............................................

239

 

3.

Distribution function ......................................................................................

239

6.

Calculation Range .................................................................................................

241

 

1.

Arithmetic calculation ....................................................................................

241

 

2.

Function calculation ......................................................................................

241

vii