Enforcing an upper bound on the display height of mathematical expressions on a handheld electronic device
OwnerTodd D. Fortenberry, Malgorzata A. Brothersinventors
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Abstract
A method and handheld computing device wherein an upper bound is enforced on the display height of mathematical expressions (234) on a display screen (211) of a handheld computing or electronic device. At least one transformation (230) remains visible on the display screen (211), and portions of the object (234) exceeding the upper bound are truncated. An arrow (236) may be used to indicate the presence of truncated portions of the object (234), and to indicate that the object (234) may be scrolled either vertically or horizontally for viewing of the entire object (234).
Claims22
A method of displaying a sequence of steps in a mathematical derivation on a display screen of a handheld computing device, the sequence of steps comprising a plurality of objects and a plurality of transformations, wherein the method comprises:
- displaying at least one transformation on the display screen;
- and
- displaying at least a portion of at least one object on the display screen, wherein an upper bound is enforced on the display height of the object.
A handheld computing device comprising:
- a display screen capable of displaying mathematical expressions, the display screen including a cursor;
- a key panel having keys at least capable of selecting positions of the cursor and moving the cursor horizontally or vertically on the display screen;
- a memory for storing at least an algorithm;
- and
- a processor for executing the algorithm, wherein the algorithm comprises a method of displaying a sequence of steps in manipulating mathematical equations on the display screen, the sequence of steps comprising a plurality of objects and a plurality of transformations, wherein the method comprises displaying at least one transformation on the display screen, and displaying at least a portion of at least one object on the display screen, wherein an upper bound is enforced on the display height of the object.
Dependencies are inferred from the claim text.