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5. Numerical Calculations
The following explains the numerical calculation operations included in the function menu
displayed when *(CALC) ((CALC) on the fx-7400G
II) is pressed. The following
calculations can be performed.
• {Int÷}/{Rmdr}/{Simp} ... {quotient}/{remainder}/{simplification}
• {Solve}/{
d/dx}/{d
2
/dx
2
}/{°dx}/{SolvN} ... {equality solution}/{differential}/{quadratic differential}/
{integration}/{f(x) function solution}
• {FMin}/{FMax}/{3(}/{log
a
b} ... {minimum value}/{maximum value}/{summation}/{logarithm
log
a
b}
I Quotient of Integer ÷ Integer [OPTN]-[CALC]-[Int÷]
The “Int÷” function can be used to determine the quotient when one integer is divided by
another integer.
Example To calculate the quotient of 107 ÷ 7
@?F*(CALC)*(E)
(E)(Int÷)F
U
* fx-7400G
II: (CALC)
I Remainder of Integer ÷ Integer [OPTN]-[CALC]-[Rmdr]
The “Rmdr” function can be used to determine the remainder when one integer is divided by
another integer.
Example To calculate the remainder of 107 ÷ 7
@?F*(CALC)*(E)
(E)(Rmdr)F
U
* fx-7400G
II: (CALC)
I Simplification [OPTN]-[CALC]-[Simp]
The “Simp” function can be used to simplify fractions manually. The following operations can
be used to perform simplification when an unsimplified calculation result is on the display.
• {Simp} U ... This function automatically simplifies the displayed calculation result using the
smallest prime number available.The prime number used and the simplified result are
shown on the display.
• {Simp}
n U ... This function performs simplification according to the specified divisor n.