Using Exact, Approximate, And Auto Modes; Exact Setting - Texas Instruments Voyage 200 User Manual

Using Exact, Approximate, and Auto Modes

Using Exact, Approximate, and Auto Modes Using Exact, Approximate, and Auto Modes Using Exact, Approximate, and Auto Modes
The Exact/Approx mode settings, which are described briefly in Operating the Handheld,
directly affect the precision and accuracy with which the Voyage™ 200
Graphing Calculator calculates a result. This section describes these mode settings as
they relate to symbolic manipulation.

EXACT Setting

EXACT Setting EXACT Setting EXACT Setting
When Exact/Approx = EXACT, the handheld uses exact rational arithmetic with up to
614 digits in the numerator and 614 digits in the denominator. The EXACT setting:
• Transforms irrational numbers to standard forms as much as possible without
approximating them. For example,
to .
3 ln(10)
• Converts floating-point numbers to rational numbers. For example, 0.25 transforms
to 1/4.
The functions
solve
symbolic algorithms. These functions do not compute approximate solutions in the
EXACT setting.
• Some equations, such as
represented in terms of the functions and operators on the handheld.
Symbolic Manipulation
, , ,
cSolve zeros cZeros
Lx
, have solutions that cannot all be finitely
2 = x
12 transforms to 2 3
, , ‰, , and
factor fMin
and transforms
ln(1000)
use only exact
fMax
238