HP Prime Graphing NW280AAABA manual PI Inserts π, Piecewise⎪

order_size Returns the remainder (O term) of a series expansion:

limit(x^a*order_size(x),x=0)=0 if a>0.

order_size(Expr)

pa2b2 Takes a prime integer n congruent to 1 modulo 4 and returns [a,b] such that a^2+b^2=n.

pa2b2(Integer)

Example:

pa2b2(17) gives [4 1]

pade Returns the Pade approximation of an expression, i.e. a rational fraction P/Q such that P/Q=Expr mod x^(n+1) or mod N with degree(P)<p.

pade(Expr, Var, Integern, Integerp)

Example:

pade(exp(x), x, 5, 3) returns	–3⋅ x2 – 24 ⋅ x – 60
	x3 – 9 ⋅ x2 + 36 ⋅ x – 60
	------------------------------------------------------------

PI Inserts π.

PIECEWISE Used to define a piecewise-defined function. Takes as arguments pairs consisting of a condition and an expression. Each of these pairs defines a sub-function of the piecewise function and the domain over which it is active.

⎧ Case1 if Test1 PIECEWISE ⎪⎨ Case2 if Test2

⎪

⎩ ...

Example:

⎧ –x if x < 0

PIECEWISE⎪

⎨⎪ x2 if x ≥ 0

⎩

Note that the syntax varies if the Entry setting is not set to

Textbook:

PIECEWISE(Case1, Test1, ...[ Casen, Testn])

plotinequation

Shows the graph of the solution of inequations with 2 variables.

plotinequation(Expr,[x=xrange,y=yrange],[xste

p],[ystep])

404 Functions and commands