5. Numerical Calculations

The following explains the numerical calculation operations included in the function menu displayed when *(CALC) ((CALC) on the fx-7400GII) is pressed. The following calculations can be performed.

{Int÷}/{Rmdr}/{Simp} ... {quotient}/{remainder}/{simplification}

{Solve}/{d/dx}/{d2/dx2}/{°dx}/{SolvN} ... {equality solution}/{differential}/{quadratic differential}/ {integration}/{f(x) function solution}

{FMin}/{FMax}/{3(}/{logab} ... {minimum value}/{maximum value}/{summation}/{logarithm

logab}

IQuotient 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-7400GII: (CALC)

IRemainder 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-7400GII: (CALC)

ISimplification

[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.

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