my first file name Chapter1.html

<img src="images/img_677_fig20.1.jpg" alt="image"/>

A world in regression also providxc ves a kind of pressure for figure 6.1 families

As in other chapters we will focus our attention on the equations that arise most often in physical situations. We will restrict our discussion, therefore, to linear PDEs, i.e. those of first degree in the dependent variable. Furthermore, we will discuss primarily second-order equations. The solution of first-order PDEs will necessarily be involved in treating these, and some of the methods discussed can be extended without difficulty to third- and higher-order equations. We shall also see that many ideas developed for ordinary differential equations (ODEs) can be carried over directly into the study of PDEs.

In this chapter we will concentrate on general s

<img src="images/img_677_fig20.2.jpg" alt="image"/>

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<img src="images/fig6.1jpg" alt=""/>

A world in regression also providxc ves a kind of pressure for figure 6.1 families toward perceiving regressive decisions and behavior as “the norm.” Many families, for example, feel completely helpless in the face of strong pressures from young people to be out late at night with their friends, especially in the summer, and sometimes even during the school year.

</body> </html ------------------------------------------------------------

1.store fig in $key
2.the chapter name store in $value how to store using hash?
3.give me exmaple for me?

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In reply to how to use hash function? by virudinesh

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