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When the calculator icon button in the bottom-left corner is tapped, a context menu emerges with a springy scale-up and fade-in animation. The menu originates directly from the tapped button, creating a clear spatial relationship. Simultaneously, the rest of the calculator interface dims to focus the user's attention on the menu options ('Basic', 'Scientific', 'Math Notes', and 'Convert'). When dismissed, the menu collapses back down toward its origin point with a swift scale-down and fade-out transition, while the background keys instantly restore to their full brightness.
