DONAU Tech Technical Scientific Calculator, Solar and Battery, 401 Functions, Black, Calculator Protective Cover, School Calculator, Sliding Case, 16.4 x 8.4 x 1.9 cm

Price: €19.00 - €13.11
(as of Dec 06, 2025 04:53:19 UTC – Details)

From the manufacturer

Donau Tech

Calculator, desktop calculator, scientific calculator

Add To Basket

Add To Basket

Add To Basket

Add To Basket

Add To Basket

Customer Reviews

4.4 out of 5 stars 115

4.0 out of 5 stars 38

4.2 out of 5 stars 133

4.0 out of 5 stars 61

3.8 out of 5 stars 205

4.0 out of 5 stars 10

Price

€4.00€4.00
— no data
€5.00€5.00 €3.75€3.75 €4.50€4.50 €5.57€5.57

Number of digits on display
8 US 8 US 8 US 8 US 8 US 8 US

Percentage calculation (%)

✓

✓

✓

✓

✓

✓

Square root function (√)

✓

✓

✓

✓

✓

✓

Case Type
Plastic Plastic / in case Plastic / in case Plastic / in case Plastic / in case Plastic / in case

Key Type
Rubber Rubber Rubber Rubber Rubber Rubber

Power supply
Battery Battery solar cell Battery Battery Battery solar cell Battery

Dimensions (mm, length x width x height)
114 x 69 x 18 97 x 60 x 11 cm 89 x 56 x 11 97 x 60 x 11 cm 90 x 60 x 11 85 x 56 x 9

Weight (g)
48 UK 36 EU 29 EU 36 EU 31 EU 39 EU

Color
Black Black Black Black Black Black

CALCULATOR

With the Donau Tech brand, you get premium products, the tradition with modern design as well as value for money with high quality. The range includes over 20 different models, from simple multifunction calculators to highly technical scientific calculators. They are designed for maximum ergonomics and are an indispensable tool when working in the office or when studying.

This is a mini version of the desktop calculator. Due to the small size, such a model can be easily transported in a backpack, handbag or even in a trouser pocket. With calculators, the functions can be kept to an absolute minimum and contain at most the percentage and square root functions.

But that’s exactly the purpose of this device, you can take it anywhere. In principle, it should be small, simple and functional.

Technically scientific with natural representation

With natural display

Technical scientific calculator:

Square roots, cubic roots, roots, squares, cubes, reciprocals, coefficients. Trigonometric function. Inverse hyperbolic function / inverse hyperbolic function. Exponential calculations. Logarithmic calculations Angle unit conversion. Logical operations and negation.Coordinate conversion. Combination / Permutation Generating random numbers. Generate random integers. Equation Scientific constants. Metric conversion function. Calculations with complex numbers (CMPLX). CALC (CALC allows you to store compute expressions that contain variables). SOLVE (SOLVE uses Newton’s law to approximate equations).Statistical calculations. Base-n calculations. Matrix calculations. Generate a number list based on functions (TABLE). Vector calculations (VECTOR). Includes sliding cover

Donau Tech K-DT6004-13 Scientific Calculator with Natural V.P.A.M. Display Battery Solar Powered Dimensions: 150 x 85 x 19 mm 417 scientific functions. Memory calculations (memory response, independent memory and variables) Basic Math Functions Percentage calculations. Degrees, minutes, seconds calculations Absolute value calculation

Donau Tech K-DT6002-01 Scientific Calculator – with Natural V.P.A.M. Display

417 scientific functions.

Exponential calculations. Logarithmic calculations Angle measurement conversion Logical operations and negation. Coordinate conversion Combination / Permutation Generating random numbersGenerating random integers.Equation. Scientific constants. Metric conversion function. Complex Numbers Calculations (CMPLX). CALC (CALC allows you to store calculation expressions that contain variables). SOLVE (SOLVE uses Newton’s law to approximate solution of equations)Statistical calculations. Base-n calculations. Matrix calculations. Generate a number list based on functions (table). Vector calculations (VECTOR). Includes slip case

Calculator with natural representation Basic math functions. Calculations in memory (response memory, independent memory and variables). fracture surgery Percentage calculations. Degrees, minutes, seconds calculations. Absolute value calculation. Square roots, cubic roots, roots, squares, cubes, reciprocal, coefficient. Trigonometric function. Inverse trigonometric function. Hyperbolic function / inverse hyperbolic function.

Desktop Calculator (Calculator, Business Standard) DONAU TECH K-DT6003-01 Scientific – Dimensions: 164 x 84 x 19 mm / 16.4 x 8.4 x 1.9 cm. Calculations with fractions. Combinations and permutations. Statistics (STAT data editor, standard deviation, regression analysis). 9 memory variables equation calculations.
Integral/Differential Calculations Basic calculations/conversions. Calculations with complex numbers matrix calculations. Vector calculations. 40 scientific constants
Basic calculations: arithmetic, with fractions, percentages, degrees, minutes, seconds, FIX, SCI, RND calculation memory, consecutive calculations. Independent Memory, Variable. Trigonometric functions/inverse trigonometric functions.
Hyperbolic Functions/Inverse Hyperbolic Functions Logarithms and natural logarithms/antilogarithms square roots, cubic roots, roots, squares, cubes, reciprocal values, dividers, random numbers, π permutation/combination. Angular mass conversion. Coordinate conversion (Pol (x, y), Rec (r, _x005f)).
Calculations in technical notation. Square and Cubic Equations Parallel Equations Statistical functions: standard deviation, regression calculations, normal distribution. Differential calculations integral calculations. Matrix calculations. Matrix Creation Machining matrix elements.
Add, subtract and multiply matrices. Calculation of the scalar product of a matrix. Determination of the determinant of a matrix. Transpose a matrix. Invert a matrix. Determination of the absolute valuables matrix. CALC memory. SOLVE function. Rectangular shape polar representation. Conjugate of a complex number.
Sliding cover. Color: Black