TARDIS Signal Decoding Calculator

A small, unwieldy handheld calculator is wedged loosely in Andred's grip as he furiously inputs trigonometric equations. The device's worn plastic casing and recessed, faded buttons suggest frequent use rather than precision engineering. Its greenish digital display glows faintly against the dim console room light, reflecting the urgency of the calculations required to break the Vardan encryption. Andred's fingers move in quick, practiced strokes, even as K9's voice delivers synchronized numerical responses.