Just what is a regular expression, anyway?
Take the tutorial to get the long answer. The short answer is that a regular expression
is a compact way of describing complex patterns in texts. You can use them to search
for patterns and, once found, to modify the patterns in complex ways. You can also use
them to launch programmatic actions that depend on patterns.
A tongue-in-cheek comment by programmers is worth thinking about: "Sometimes you
have a programming problem and it seems like the best solution is to use regular
expressions now you have two problems." Regular expressions are amazingly
powerful and Deeply expressive. That is the very reason writing them is just as
error-prone as writing any other complex programming code. It is always better to
solve a genuinely simple problem in a simple way when you go beyond simple, think
about regular expressions.
Tutorial: Using regular expressions
for the just beginning learn the computer person,use DOS is boring . after known a little DOS,think dos is mysterious.this is the book introduce how to use dos Deeply.
There are few technologies that have had a more profound effect on people’s lives
than mobile communications. As recently as twenty years ago no one had a mobile
phone, while today 1.4 billion men, women and children depend on them. This now
exceeds the number of landline users, where it took the preceding one hundred years
to reach the 1 billion mark. The ability to make mobile voice calls turns out to be the
answer to a Deeply felt need across different cultures who simply want to
communicate.
An understanding of the policies, regulations, standards and techniques of radio spectrum
management is useful to those who manage and administrate it, to operators, to equipment
providers and to the users of wireless communication (i.e., all of us). For many years the author
has been Deeply involved in ruling the RF spectrum at the national, regional and global levels.
The book is based on the professional experience of the author, his academic courses, presenta-
tions and tutorials in five continents. The book reflects this legacy and will be of use to engineers,
lawyers and economists, who serve the global industry of the wireless world; in it they may find
solutions to the problems they frequently encounter.
This is a practical book, to be sure, but it is also a book about hope and posi-
tive change. I am quite sincere. The delivery of electricity is Deeply rooted
in the principle of universal access; when clean, reliable energy is available it
contributes to poverty alleviation, improved social conditions, and enhanced
economic development. In the developed world, we know this to be true. The
digital fabric of our lives is a testimony to the importance of energy security.
Across the globe, we have seen the vital contributions that electrification has
brought to the development of economies and an enhanced quality of life.
Nonetheless, this supreme engineering achievement has languished, and we are
Deeply challenged.
This book describes a unifying framework to networked teleoperation systems
cutting across multiple research fields including networked control system for linear
and nonlinear forms, bilateral teleoperation, trilateral teleoperation, multilateral
teleoperation, cooperative teleoperation, and some teleoperation application
examples. Networked control has been Deeply studied at the intersection of systems
& control and robotics for a long time, and many scholarly books on the topic have
been already published. Nevertheless, the approach remains active even in several
new research fields, such as bilateral teleoperation, single master and multiple
slaves, trilateral teleoperation, and multilateral teleoperation
