计算器是PPC的一项主要功能。这里我们就向大家介绍几款优秀的免费计算器！
1。Eval 1.0 from Digital Light & Color
Eval is a combined scientific/programmer’s calculator with a novel method for
entering formulas. If works equally well via keyboard or via stylus, and
supports several different skins (see above).
官方地址： http://web5.topchoice.com/~jsachs/ppc.html
2.Real Calculator 1.2 from Frank Stengel
define formulars with parameters
define your own buttons (MyScientificCalculator)
calculation of inverse matrixes and determinante for matrixes > 3x3
symbolic derivation calculator (e.g. sin(2x) --> 2cos(2x))
computer calculator (hexadecimal / binary)
metrics converter
much improoved user-interface
copy and paste
官方：http://www.frankstengel.de/realcalcindex.htm
3.Q-Calc 0.95b from Q-Calc
Scientific Calculator for Windows CE - it’s free!
http://www.hcrburk.de/qcalc.html
4.Engineering Calculator 1.12 from Aidem Systems
Description:
This is a Pocket PC calculator for scientific, and computer math. This
calculator is very bright and easy to use, support more than 50 functions.
官方地址： http://www.aidem.com.tw/
5.Calc98 5.3 from Flow Simulation
Description:
Calc98 is a Scientific engineering statistical and financial pocket calculator
simulator program for the Microsoft Windows operating systems. It includes a
comprehensive set of conversions, constants and physical property data, a
built-in periodic table of the elements, number base conversions, vectors,
matrices and complex numbers. It is especially suitable for the scientific,
engineering, medical and teaching professions and in finance.
官方地址： http://www.calculator.org/download.html
6. ev41-hp41 from Frank Bauernoeppel v.9
Virtual HP-41 for Pocket PC
官方地址： http://www.hp41.org/eV41.html
7.Emu48 from Leopoldo Bueno Castillo v1.23
The Menu bug is corrected. Now the Menus works fine in every situation.
A new one step installation procedure for Palm Size PC and PocketPC
官方地址： http://web.jet.es/leobueno/
8.Napier freeware from Newburyport Computer Assoc.
可以写长表达式
官方地址：http://www.nca-corp.com/Napier/Napier%20Overview.htm
9.Math Xpander from Saltire Software
Description
Math Xpander™ is an application that resulted from investigations
within laboratories at Hewlett Packard. It supports real time interactions
between users and mathematical objects with a stylus in multiple
representations: graphic, symbolic, and numeric. Saltire Software contributed a
computational engine that supports geometric constructions in the application
官方地址：http://www.saltire.com/xpander.html
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