Scientific Calculator With Time Show, Function Science Calculator for Middle School Student, College Students and Engineers, Lightweight and Portable Calculator

?Product Description? 1.Supports mathematics functions, enter fractions, raise y to the x power, figure standard deviations, process degree/radian/grad conversions, calculate sine, cosine, tangent, exponential, trigonometric functions, inverse, and compute permutations and combinations. 2.If you make an input error, you can quickly clear it with the backspace key. 3.Ideal for high school students, college students and professionals. ?About Return Request? If it is the quality question,we will RESEND or REFUND to you; If you receive damaged or wrong items,please contact us and attach some pictures about your product and packages to us,we'll confirm it for you. if it really has some wrong,we'll exchange a new correct item to you. If you are satisfied with our product or service,please leave your positive feedback!