Envelopes are technical indicators that are typically plotted over a price chart with upper and lower bounds.
The most common example of an envelope is a moving average envelope, which is created using two moving averages that define upper and lower price range levels.
Envelopes are commonly used to help traders and investors identify extreme overbought and oversold conditions as well as trading ranges.
envelope is a paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing while packet is a small pack or package;
a little bundle or parcel; as, a packet of letters, a packet of crisps, a packet of biscuits. As verbs the difference between envelope and packet
is that envelope is (nonstandard) while packet is to make up into a packet or bundle.
In an age where we’re being taught how to compose electronic communication such as email, SMS or Skype, the art of addressing envelopes is being lost.
Whilst writing letters is far from a forgotten skill, anyone inexperienced in envelope formatting may run into some issues.
Your mail delivery company will go to great lengths to deliver all mail, even if it’s poorly addressed or formatted.
Even so, it’s likely you’d experience a delay in delivery and there’s still the risk of it getting lost.
Want your mail to arrive where you intended it do? Of course you do. Avoid confusing the mail staff or making the postman’s job difficult and you’ll
be rewarded with prompt delivery.
Are you sending your mail to a lover? Potential business partner? Penpal? Just like we make judgements and impressions in person, you can bet your mail receiver
is going to look at your envelope in the same way. In the simplest terms, what would your reaction be if you received mail and the envelope was a scribbled mess?
You took the time to learn how an envelope should look but, through no fault of your own, it couldn’t be delivered.
Including your return address on the back of an envelope ensures that you can be reunited with your mail, should it need to find its way back home.