They are quite close in meaning.
"Day by day" refers to process and the passage of time, such as the famous dictum of Emile Coué: "Day by day, in every way, I get better and better". Other examples: "His diary gives a day-by-day account of his life", "Day by day she watched her child grow up", "He's getting stronger day by day".
It has similar meaning to "from day to day", but "day to day" on its own tends to refer to the ordinary things of life, the quotidian. "The day-to-day running of the business is looked after by Mr. X.", "the day-to-day changes in the exchange rate", "She's the one who does the work day to day, I just come in from time to time". There is also the meaning "He lives from day to day", meaning that he doesn't plan ahead.
Note, we usually use hyphens to connect the words when the phrase is an adjective in front of a noun.
Architects and if you study Geometry you will have to use graphs.
whate is trangle
about 1 gallon a day
you can use it to find heights of trees or buildings and stuff. It is good for distances too.
Reasearch and games that what i use my laptop for
Yes, if you forget to use a diaphragm for a day and have sex on that day you can get pregnant.
You could use phrases like "the following day", "the day after", or "the subsequent day" as alternatives to saying "the next day."
i partied all day ALL DAY.
many people use it a day buckethead!
Architects and if you study Geometry you will have to use graphs.
yes
whate is trangle
You can use your day to day email address. I used my hotmail account. :)
To say "day" in Tagalog, you can use the word "araw."
about 66% a day
about 1 gallon a day
Yes.