Texas Instruments TI-89 User Manual - Page 922

3:ENGINEERING Similar to scientific notation. However: • The number may have one, two, or three digits before the decimal. • The power-of-10 exponent is a multiple of three. For example, 12.34567E3 means 12.34567×103 Note: If you select NORMAL, but the answer cannot be displayed in the number of digits selected by Display Digits, the TI-89 Titanium / Voyage™ 200 displays the answer in SCIENTIFIC notation. If Display Digits = FLOAT, scientific notation will be used for exponents of 12 or more and exponents of -4 or less. Complex Format Specifies whether complex results are displayed and, if so, their format. 1:REAL Does not display complex results. (If a result is a complex number and the input does not contain the complex unit i, an error message is displayed.) 2:RECTANGULAR Displays complex numbers in the form: a+bi 3:POLAR Displays complex numbers in the form: rei q Vector Format Determines how 2-element and 3-element vectors are displayed. You can enter vectors in any of the coordinate systems. 1:RECTANGULAR Coordinates are in terms of x, y, and z. For example, [3,5,2] represents x = 3, y = 5, and z = 2. 2:CYLINDRICAL Coordinates are in terms of r, q, and z. For example, [3,∠45,2] represents r = 3, q = 45, and z = 2. 3:SPHERICAL Coordinates are in terms of r, q, and f. For example, [3, ∠45, ∠90] represents r = 3, q = 45, and f = 90. Pretty Print Determines how results are displayed on the Home screen. 1:OFF 2:ON Results are displayed in a linear, onedimensional form. For example, p^2, p/2, or ‡((x-3)/x) Results are displayed in conventional mathematical format. For example, p2, π-2- , or -x-----x----3-- Note: For a complete description of these settings, refer to "Formats of Displayed Results" in the Operating the Calculator module. Appendix B: Technical Reference 923