Ingerik Direct FX-991ES Plus Scientific Calculator for Function Complex Equation Set

Description

1. Routine calculation 1) arithmetic calculation 2) fractional calculation/percentage calculation/rational number calculation, etc. 3) calculate in minutes. 4) variable calculation 5) SOLVE the equation 6) calculation of all kinds of functions (trigonometric/anti-trigonometric hyperbolic/anti-hyperbolic function exponent/logarithmic function power subfunction/power root function integral/differential calculation) 7) the absolute value of the factorial and the combination rounding function 2. Complex calculation 1) addition, subtraction, multiplication and division of complex Numbers. 2) calculation of auxiliary Angle and mold. 3) counting the reciprocal of complex Numbers, squares and cubes. 4) calculation of conjugate complex Numbers. 3. Statistical calculation 1) 1-var single variable. 2) A+BX linear regression. 3) _+CX2 regression. 4) ln X log regression. 5) e inverted X e index regression. 6) A•B inverted X ab index regression. 4 decimal conversion 1) DEC decimal 2) HEX hexadecimal system. 3) BIN binary 4) OCT octal 5 equation calculation 1) an X+bnY=Cn has two unknowns. 2) anX2+bnY+cnZ=dn has three unknowns. 3) aX2+bX+c=0 quadratic equation. 4) aX3+bX2+cX+d=0 cubic equation. 6 matrix calculation 1) add up the matrix, multiply, multiply, square, and cube. 2) calculate the determinant, transfer and inverse matrix of the matrix. 3) calculate the modulus of each element of the matrix. 7 function table calculation. 1) calculate the replication, addition, scalar multiplication, multiplication, square, and cube of the matrix. 2) calculate the determinant, transfer and inverse matrix of the matrix. 3) calculate the modulus of each element of the matrix.