Calculators, Texas Instruments, Scientific, Model TI-30X IIS, C8474, Texas Instruments (CAT#: STEM-L-2801-Y)

Functions: Five memory registers; two-variable statistics; common and natural logarithms; universal powers and roots; reciprocals and factorials and many more
Display: alphanumeric; 2-line display
Special features: memory retention allows users to edit and view current entries as well as previous entries.

Manufacturer: Texas Instruments
Battery power: 3 V Eveready ECR2025 or equivalent solar cells (lithium battery for backup)

• Algebraic entry logic
• Functions: math, exponential, trig., inverse trig., statistical functions (mean and standard deviation); angle/time conversions
• Protective sliding case