The scientific calculator TECH by Donau is a versatile and powerful tool designed for students and professionals in the fields of mathematics, natural sciences, and engineering. With 401 functions, this calculator offers a comprehensive range of calculation options, from basic arithmetic operations to complex statistical analyses. It operates on both battery and solar power, ensuring reliable use under various conditions. Its compact design, measuring 164 x 84 x 19 mm, makes it a practical companion for on-the-go calculations. The user interface is intuitively designed, allowing for efficient and user-friendly input of calculations and retrieval of results. The TECH calculator supports a variety of mathematical concepts, including fractions, matrix and vector calculations, as well as trigonometric and logarithmic functions. It is therefore ideal for anyone who needs to perform precise and complex calculations.

• Operating modes: Battery and solar power
• Extensive statistical functions, including regression analysis and standard deviation
• Support for complex number and matrix calculations
• Memory for up to 9 variables
• Functions for differential and integral calculations.