Scientific calculator VECTOR KAV CS-105 — 240 functions, 80×170 mm

VECTOR KAV CS-105 — 240 functions, 80×170 mm is a compact scientific calculator designed for standard scientific, engineering and educational use. The device provides an array of built-in functions including trigonometric, logarithmic, statistical and memory operations in a portable form factor. With dimensions of 80×170 mm it fits into a backpack or briefcase and is intended for users who need reliable multi-function computation without a large or complex device.

Advantages

The calculator combines a broad set of 240 functions with a compact footprint, enabling complex calculations in a small, lightweight unit. It offers direct access to common scientific and statistical routines and includes memory capabilities to store intermediate values. The simple keypad layout and clearly labeled keys support efficient data entry, while the sturdy housing is intended to withstand regular classroom or field use.

Suitable for

• Students studying mathematics, physics or engineering
• Professionals performing field calculations or quick technical checks
• Statistical analysis and basic data processing tasks
• Classroom exams and homework where permitted

Key specifications

• Number of functions: 240
• Dimensions: 80 × 170 mm
• Function groups: trigonometric, logarithmic, exponential, power, root
• Statistical routines: basic statistics and regression functions
• Memory: multiple memory registers for storing intermediate results
• Display: multi-line numeric display suitable for expressions and results
• Power: battery-powered with low consumption design

How to use

Turn on the calculator and enter expressions using the numeric and function keys; use parentheses for order of operations when needed. Select trigonometric modes (degrees/radians) according to the task and apply memory keys to store or recall intermediate values. For statistical calculations, select the appropriate mode and follow prompts to input data points, then use the statistical function keys to compute mean, standard deviation or regression parameters. Refer to the printed key labels to access combined functions and secondary key operations.

Usage recommendations

To preserve battery life and ensure accurate results, switch the calculator off when not in use and avoid exposing it to extreme temperatures or moisture. Use clear, stepwise entry of long expressions and verify mode settings (angle unit, statistical mode) before running calculations. For exam use, confirm allowed functions and device form factor with the examining body.