HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 25

hp40g+.book Page 13 Friday, December 9, 2005 1:03 AM Getting started symbolic views of the aplets in the following table. See "Aplet view configuration" on page 1-18 for further information. Aplet name Use this aplet to explore: Function Real-valued, rectangular functions y in terms of x. Example: y = 2x2 + 3x + 5 . Inference Confidence intervals and Hypothesis tests based on the Normal and Students-t distributions. Parametric Parametric relations x and y in terms of t. Example: x = cos(t) and y = sin(t). Polar Polar functions r in terms of an angle θ. Example: r = 2 cos(4θ) . Sequence Solve Sequence functions U in terms of n, or in terms of previous terms in the same or another sequence, such as Un - 1 and Un - 2 . Example: U1 = 0 , U2 = 1 and Un = Un - 2 + Un - 1. Equations in one or more real-valued variables. Example: x + 1 = x2 - x - 2 . Finance Time Value of Money (TVM) calculations. Linear Solver Solutions to sets of two or three linear equations. Triangle Solver Unknown values for the lengths and angles of triangles. Statistics One-variable (x) or two-variable (x and y) statistical data. In addition to these aplets, which can be used in a variety of applications, the HP 40gs is supplied with two teaching aplets: Quad Explorer and Trig Explorer. You cannot modify configuration settings for these aplets. A great many more teaching aplets can be found at HP's web site and other web sites created by educators, together with accompanying documentation, often with student work sheets. These can be downloaded free of 1-13