240 Function Design: the scientific calculator for engineering students has about 240 integrated functions, such as percentage, trigonometric function, 24 bracket levels, summation, regression, score, regression, arrangement and combination, etc., to provide you with comprehensive and diverse calculation functions, helping you with some mathematical arithmeticWell Performance: the non graphing scientific calculator is designed with a playback button, which can display your work and previous results, reducing repeated calculations as well as releasing your worry about recalculation to improve work efficiency; It has clear numbers and smart buttons, not easy to scratchRich Packaging Combination: you will get 16 pcs student calculators, there are 4 colors, including pink, blue, green and white, 4 pieces of each color, bright and fresh, enough quantity can meet your replacement and sharing needs. Please note that the green calculator, the battery box is AAA battery (not included), the battery model without battery in the whole packageNjoyable 2 Line Vision: the non graphing calculator combines with a clear LCD that has 2 lines display function, which can show the calculation information and results in the meantime, bringing you a comfortable and quick viewVarious Occasions: the engineering calculator can meet the needs of most math courses in middle schools and universities, providing better help in daily learning; In addition, it can be applied to exams and accounts