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SCIENTIFIC GENIU

Tl-68: 254-function calculator for technical students and professionals

The further you goin engineering math and other technical courses, the more you need a scientific calculator that speeds you through complex problems. With 254 powerful advanced scientific functions, the T1-68 from Téxas Instruments is both a smart choice and an exceptional value. The TI-68 easily solves up to five simultaneous equations with real or complex coefficients... evaluates 40 complex number functions. ..and allows polar and rectangular forms for entries and results.

Aconvenientlast equation replay feature lets you check your answers without re-entering them. Formula programming provides up to 440 program steps for as many as 12 user- generated formulas. Perform operations in four number bases, one-and two-variable statistics, and Boolean logic operations. The polynomial root finder calculates real and complex roots of quadratic, cubic or quartic equations.

Only the T1-68 delivers so much functionality, value and ease in one compact, advanced scientific tool.

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TI-81: Powerful, easy to use 300-Function graphic calculator

The TI-81 Graphics Calculator from Texas Instruments is the first graphics calculator developed with leading mathematics educators and experienced classroom teachers specifically for the special needs of mathematics education.

Power to attract young minds. The TI-81 has been designed toenhance students’ understanding of the conceptual relationship between graphical and algebraic representations. It offers unique capabilities for easily entering and saving functions, choosinga viewing range, and automatically plotting functions. Computer-like features and cursor keys provide flexible zoom capabilities and greatly simplify tracing along functions, with both X and Y coordinate values displayed.

In addition to these interactive graphing features, the TI-81 also handles parametric equation graphing, matrix operations, and one- and two-variable statistical analysis. It even has extensive programming capabilities and special drawing and shading features. A special guidebook written with the help of leading mathematics educators is provided.

Designed for easy use. The clean-looking TI-81 provides more features than many complex-looking calculators by making extensive use of familiar “pull-down” screen menus. These menus permit clear, descriptive labels to identify complex functions so students can easily access, select, and execute desired operations. Students will appreciate the larger, well-spaced, colour-coded keys with clear descriptive names. Graphing, standard scientific, and advanced functions, along with the cursor keys, are logically arranged in groups to reduce confusion.

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