Texas Instruments TI-30X IIB

Date of introduction:  June 1999 Display technology:  LCD
New price:  $13.99
 $11.99 (SRP 2008)
Display size:  11 characters and  10 +2
Size:  6.1" x 3.2" x 0.6"
 154 x 83 x 15 mm
Weight:  3.3 ounces, 94 grams Serial No:  
Batteries:  CR2025 (60A) Date of manufacture:  
AC-Adapter:   Origin of manufacture:  China (N)
Precision:  13 Integrated circuits:  
Memories:  5    
Program steps:   Courtesy of:  Joerg Woerner

In 1999 the TI-30 line of calculators received a great feature - a 2-line display. The upper entry line displays up to 11 characters and can be scrolled left and right up to 88 characters. The lower result line displays 10 digits of mantissa and 2 digits for the exponent. Compared with the traditional TI-30Xa Solar the upper line permits to recall the last entry and to correct instantly.

The family covers 5 different calculators, compare them with the following table:


TI-30X IIB TI-30X IIS TI-34 II TI-36X II TI-40 College II
Power CR-2025 Solar + CR-2025 Solar + CR2025 CR-2025 CR-2025
Scientific notation yes yes yes yes no
Engineers mode yes yes no yes no
Memories 5 5 5 5 5
Constant operators 1 1 2 2 2
Integer division no no yes yes yes
pi-symbol yes yes yes yes yes
Conv. and constants 0 0 0 20+15 0
Bool'ean algebra no no yes yes no

Read more about the Logarithm Bug and its side effect on the related yx function present in this calculator. The affected calculators manufactured by Nam Tai Electronics, Inc. and Compal Electronics in December 1999 or before were replaced in an offer running through January 31, 2001. Don't miss one of the later TI-30X IIB calculators.

The US retailer Wal-Mart released for its Back-to-School 2003 campaign a wonderful, lime-green edition of the TI-30X IIB.

In 2004 Texas Instruments introduced a new design line with a really prominent name plate and some modern applications like an aluminum bezel around the display. Don't miss the the new TI-30X IIB.

Stokes Publishing Company, Inc. based in Sunnyvale, California sold a companion for the teacher, view the wonderful TI-30X II Overhead Calculator.

Please remember the Canon Palmtronic MD-8 sporting a two-line display already in 1979.

Math Explorer is a trademark of Texas Instruments.


If you have additions to the above article please email:

Joerg Woerner, January 3, 2002. No reprints without written permission.