CHSLO fx-991ES PLUS Scientific Calculator with Graphic Functions for Business Study Accessories Supplies Calculator

1. Routine Calculation:

• 1) Arithmetic calculation
• 2) Fraction calculation/percentage calculation/rational calculation, etc.
• 3) Degree minutes and seconds calculation
• 4) Variable calculation (using CALC)
• 5) Equation solution (using SOLVE)
• 6) Calculation of various functions (trigonometric/inverse trigonometric function hyperbolic/inverse hyperbolic function exponential/logarithmic function power function/power root function integral/differential calculation sum calculation)
• 7) Other calculations (factorial absolute value random number permutation and combination rounding function)

2. Complex Calculation:

• 1) Addition, subtraction, multiplication and division of complex numbers
• 2) Calculation of auxiliary angle and mode
• 3) Calculation of reciprocal, square and cubic of complex numbers
• 4) Calculation of conjugate complex numbers 

3. Statistical Calculation:

• 1) 1-VAR single variable
• 2) A+BX linear regression
• 3) _＋CX2 quadratic regression
• 4) ln X logarithmic regression
• 5) e∧X e index regression
• 6) A•B∧X ab index regression

4. Decimal Conversion (base calculation):

• 1) DEC decimal
• 2) HEX hex
• 3) BIN binary
• 4) OCT octal

5. Equation Calculation:

• 1) an X+bnY=Cn linear equation with two unknowns
• 2) anX2+bnY+cnZ=dn linear equation with three unknowns
• 3) aX2+bX+c=0 quadratic equation
• 4) aX3＋bX2+cX+d=0 cubic equation

6. Matrix Calculation:

• 1) Addition of calculation matrix, scalar multiplication, multiplication, square, cubic
• 2) Determinant, shift, and inverse matrix of the calculation matrix
• 3) Calculate the modulus of each element of the matrix
• 7. Function Table Calculation:
• 1) Calculation of matrix replication, addition, scalar multiplication, multiplication, square, cubic
• 2) Determinant, shift, and inverse matrix of the calculation matrix
• 3) Calculate the modulus of each element of the matrix

8. Vector Calculation:

• 1) Calculate vector replication, vector addition, scalar multiplication, and vector dot product
• 2) Calculate the modulus of the vector

Package included

• 1 x Calculator
• 1 x English User Manual

Specifications