Calculatrice scientifique portable à affichage LED pour étudiants, modèle 991ES PLUS.

Description: This is a full function scientific function calculator. Designed for students and office workers. Touch keyboard, easy to click. It has excellent quality, stable and responsive. Comprehensive scientific computing functions, considerate angles, easy viewing. It can help you solve problems you encounter in your study, convenient to calculate. Features: 1. Textbook synchronous display, tabular statistics and 10 position radix + 2 position exponent. Used for scientific calculation, namely function calculation. 2. Multi-step reappear, dotmatrix display and Plastic buttons. Touch keyboard, easy to click. 3. Multi-function mathematical calculator: It can be used to calculate advanced functions. 4. High quality material: durable, stable and responsive. Designed for students and office workers. 5. Upgrade motherboard: more stable work. It can help you solve problems you encounter in your study, convenient to calculate. 6. LCD display: read the results clearly in two-line display mode. Comprehensive scientific computing functions, considerate angles, easy viewing. Functions: 1. Routine Calculation 1) arithmetic calculation 2) Score calculation/percentage calculation/rational number calculation, etc. 3) Degree, minute, second calculation 4) Variable calculation (use CALC) 5) Equation solution (use SOLVE) 6) Calculation of various functions (trigonometric/anti-trigonometric function, hyperbolic/inverse hyperbolic function, exponent/logarithmic function, power function/power square root function, integral/differential calculation, calculus summatorius). 7) Other calculations (factorial, absolute value, random number, permutations and combinations, rounding function). 2. Plural Computing 1) The addition, subtraction, multiplication, and division of plural 2) Calculation of auxiliary Angle and model 3) The inverse, square, and cubic of plural 4) The calculation of complex conjugate numbers 3. Statistical Calculation 1) single variable 2) linear regression 3) quadratic regression 4) logarithmic regression 5) e exponential regression 6) ab exponential regression 4. Number Systems Converter (radix calculation) 1) DEC decimalism 2) HEX hexadecimal 3) BIN binary system 4) OCT octonary number system 5. Equation Calculation 1) One equation with two unknowns 2) One equation with three unknowns 3) Quadratic 4) Cubic Equation 6. Matrix Calculation 1) Calculate matrix replication, addition, scalar multiplication, multiplication, square, and cube 2) Calculate the determinant, transposition and inverse matrix of the matrix 3) Compute the modulus of each element of the matrix 7. Vector Computation 1) Calculate vector replication, vector addition, scalar multiplication, vector dot product 2) Compute the norm of vector Specifications: Type: Scientific Calculator Material: Plastic Color: Black Size: Approx. 16.2 * 8 * 0.8 cm / 6.4 * 3.1 * 0.3 inch Weight: 158.5g Package Include: 1 x Calculator 1 x Calculator Lid 1 x Multilingual User Manual '