HP Prime Graphing NW280AAABA manual PrevalExprFvar,Reala,Realb,Var, SumriemannExprXpr,Lstvar1,var2

F(b)–F(a) Returns F(b)–F(a).

preval(Expr(F(var)),Real(a),Real(b),[Var])

Example:

preval(x^2-2,2,3) gives 5

Limits

Riemann Sum Returns in the neighborhood of n=+∞ an equivalent of the sum of Xpr(var1,var2) for var2 from var2=1 to var2=var1 when the sum is looked at as a Riemann sum associated with a continuous function defined on [0,1].

sum_riemann(Expr(Xpr),Lst(var1,var2))

Example:

sum_riemann(1/(n+k),[n,k]) gives ln(2)

Taylor Returns the Taylor series expansion of an expression at a point or at infinity (by default, at x=0 and with relative order=5).

taylor(Expr,[Var=Value],[Order])

Example:

taylor(sin(x)/x,x=0) returns 1-(1/6)*x^2+(1/ 120)*x^4+x^6*order_size(x)

Taylor of Quotient Returns the n-degree Taylor polynomial for the quotient of 2 polynomials.

divpc(Poly1,Poly2,Integer)

Example:

ddivpc(x^4+x+2,x^2+1,5) returns the 5th-degree polynomial x^5+3*x^4-x^3-2*x^2+x+2

Transform

Laplace Returns the Laplace transform of an expression.

laplace(Expr,[Var],[LapVar])

Example:

laplace(exp(x)*sin(x)) gives 1/(x^2-2*x+2)

Functions and commands 329