HP 35s User Manual

D-2 More about Solving
 If f(x) has one or more local minima or minima, each occurs singly between
adjacent roots of f(x) (figure d, below).
In most situations, the calculated root is an accurate estimate of the theoretical,
infinitely precise root of the equation. An "ideal" solution is one for which f(x) = 0.
However, a very small non–zero value for f(x) is often acceptable because it might
result from approximating numbers with limited (12–digit) precision.
f (x)
x
a
f (x)
b
x
f (x)
x
c
f (x)
x
d
Function Whose Roots Can Be Found

HP 35s Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Black
Digits	14 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157.9 x 18 x 82 mm