Description
Features
– Core Functions: Advanced capabilities including spreadsheet calculations, matrix operations, equation solving, and inequality resolution
– Professional Applications: Supports advanced statistical analysis, distribution calculations, ratio computations, and metric conversions
– Practical Tools: Built-in scientific constant tables for swift reference
– Display Examples: Performs complex operations like data averaging with clear step-by-step visualisation
Specifications
Colour: Black
Dimensions: 17.7 × 8 × 1.5 cm
Weight: 148 g
Material: ABS
Power Source: CR2025 button cell battery
Packing List
1× FX-991EX scientific calculator (with CR2025 button cell battery)
Notes
1.Avoid subjecting the calculator to severe impacts or drops from heights. Refrain from forceful striking to prevent damage to internal precision components, which may cause malfunction
2.Clean the body and screen with a soft, dry cloth. Do not use chemical cleaners, alcohol, or damp cloths, as these may damage the surface finish and impair display clarity
3.Keep the calculator away from water sources and humid environments. Any liquid ingress may cause circuit short-circuits and permanent damage
4.Do not use or store in environments with extreme heat, humidity, or dust (e.g., inside a car exposed to direct sunlight or near open flames)
5.When replacing batteries, observe correct polarity and use only the specified type. Remove batteries when the calculator is not in use for extended periods
6.When not in use, store the calculator in the supplied sliding protective case and keep it separate from sharp objects to prevent scratches to the screen and body