27 lines
1.4 KiB
Markdown
27 lines
1.4 KiB
Markdown
# Komponenten: Rechner
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```
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Display (S01)
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expression right aligned, expr 72sp shrinking to expr-min as it grows, then scrolls horizontally; cursor; selectable (long press → S04)
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result live preview below (result 36sp, muted); on "=" it animates up into the expression
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states empty (blinking cursor), typing, final, error (error colour, message), overflow (scroll)
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tokens display bg, radius display at the bottom corners, drag handle 32×4 at the bottom edge
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FunctionRow (S01) / ScientificPanel (S02)
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collapsed √ π ^ ! as text keys + chevron button (circle)
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expanded tonal pills: √ π ^ ! / Deg|Rad sin cos tan / Inv e ln log; Inv toggles labels (sin⁻¹ cos⁻¹ tan⁻¹ / eˣ 10ˣ x²)
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motion expand with the keypad sliding down (sheet spring)
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Key
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variants digit, op (÷ × − +, ( ), %), ac, eq, fn
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shape circle at rest → squircle (key-pressed radius) while pressed, spring back; haptic KEYBOARD_TAP
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a11y content descriptions in words ("geteilt durch", "Klammer", "Wurzel"), backspace long-press = clear
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HistorySheet (S03)
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pull the display down (or ⏱ button) to reveal; groups by day ("Heute", "Gestern", date); row = expression muted + result large, right aligned;
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tap inserts the result; "Aktuelle Eingabe" label above the live expression; empty state text; clear in the overflow menu
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ContextMenu (S04)
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floating pill: Ausschneiden, Kopieren, Einfügen, MS, MR (when memory set)
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```
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