Casio fx-570ES PLUS User Manual
Also see for fx-570ES PLUS: User guideUser guide
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E-29EQN Mode Calculation Examplesx + 2y = 3, 2x + 3y = 4(EQN)(an X + bn Y = cn )1 2 3 2 3 4 (X=) –1A (Y=) 2x – y + z = 2, x + y – z = 0, –x + y + z = 4(EQN)(an X + bn Y + cn Z = dn )1 1 1 2 1 1 1 0 1 1 1 4 (X=) 1A (Y=) 2A (Z=) 3x2 + x + 43 = 0 (EQN)(aX 2 + bX + c = 0)1 1 3 4 (X1=) 12 +– '22 iA (X2=) 12 –– '22 ix2 – 2'2 x + 2 = 0 (EQN)(aX2 + bX + c = 0)1 2 2 2 (X=) '2x3 – 2x2 – x + 2 = 0(EQN)(aX3 + bX2 + cX + d = 0)1 2 1 2 (X1=) –1A (X2=) 2A (X3=) 1Matrix Calculations (MATRIX)Use the MATRIX Mode to perform calculations involving matrices of up to 3rows by 3 columns. To perform a matrix calculation, you first assign data tospecial matrix variables (MatA, MatB, MatC), and then use the variables inthe calculation as shown in the example below.To assign 2 11 1 to MatA and 2 –1–1 2 to MatB, and then performthe following calculations: ×2 11 12 –1–1 2 (MatA×MatB),+2 11 12 –1–1 2 (MatA+MatB)MathMathMathMath11 |
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