HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 492)

100

101

modgcd

Uses the modular algorithm to return the greatest common divisor of two polynomials.

modgcd(Poly1,Poly2)

Example:

modgcd(x^4-1,(x-1)^2) gives x-1

mRow

Given an expression, a matrix, and an integer n, multiplies row n of the matrix by the expression.

mRow(Expr, Matrix, Integer)

Example:

mRow returns

mult_c_conjugate

If the given complex expression has a complex denominator, returns the expression after both the numerator

and the denominator have been multiplied by the complex conjugate of the denominator. If the given

complex expression does not have a complex denominator, returns the expression after both the numerator

and the denominator have been multiplied by the complex conjugate of the numerator.

mult_c_conjugate(Expr)

Example:

mult_c_conjugate returns

mult_conjugate

Takes an expression in which the numerator or the denominator contains a square root. If the denominator

contains a square root, returns the expression after both the numerator and the denominator have been

multiplied by the conjugate of the denominator. If the denominator does not contain a square root, returns

the expression after both the numerator and the denominator have been multiplied by the conjugate of the

numerator.

mult_conjugate(Expr)

Example:

mult_conjugate returns

nDeriv

Given an expression, a variable of dierentiation, and a real number h, returns an approximate value of the

derivative of the expression, using f’(x)=(f(x+h)–f(x+h))/(2*h).

Without a third argument, the value of h is set to 0.001; with a real as third argument, it is the value of h. With

a variable as the third argument, returns the expression above with that variable in place of h.

nDeriv(Expr,Var, Real) or nDeriv(Expr, Var1, Var2)

444 Chapter 22 Functions and commands

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