What does an equals sign with a third bar mean?
346676
The symbol ≡ is a mathematical symbol that means "equivalent to" acording to one source, and "is defined as" in another source, and may also mean "congruence."  \n\nExample:  x ≡ y means x is defined to be another name for y\n\nIn other words, it's a logical relationship, rather than the  result of an operation.  For example:  2 + 3 = 5  \nIn that example, the equal sign means equal to, or the result of adding 2 and 3.
1000294
Well, the horizontal fraction bar is called a "vinculum" but the slanted version is called a "solidus."\n\nEDITED TO ADD: dax is right, btw... the word "solidus" applies to any use of a "slash."  Also, the word "vinculum" applies to any placement of a bar over mathematical symbols in order to group them, like the horizontal bar part of the radical ("square root") symbol (√), or the bar placed over the repeating numbers of a decimal expression.
385108
Something is very wrong here. SIGMA (Σ) is not a substitute for a plus sign. If the author intends to sum several terms, then\n\na + b + c\n\nis the correct notation.\n\nΣ is used when an expression is to be evaluated more than once, and the results of the several evaluations are to be summed. For example,\n\nx = 3\n  Σ  (2x)\nx = 1\n\nhas "limits" of x going from 1 to 3. For each of the different possible values of x, namely 1, 2, and 3, we evaluate the expression in the parentheses and add the results. The expression evaluates to 2, 4, and 6, and their sum is 12.
667791
Do you mean "not equal to"?\n<>\nThat's also still supported in some newer languages, although != is more common nowadays.
1170365
If I recall, it's something along the lines of ALT + 3. It's a single number, lower digits. I'm on a laptop, so I can't test it.
691129
<> means 'not equal to'\n\nThe C/C++ equivalent is != \n\n a <> b : means 'a is not equal to b'\n 5 <> 6 : gives the value True\n 5 <> 5 : gives the value False
50939
Use a division sign in parentheses. That way three fourths will look like (3/4).
12600
In Custom format you can specify format as required by you.\nIt has three parts seperated by ;\n1st is for positive\n2nd is for negetive\n3rd is for Zero\nso you can specify as  follows to get the + sign displyed\n\n+#;-#;"Zero"
502859
Okay, -2 is where your graph crosses the Y-axis. 1/3 represents the slope of the line (y/x or rise/run). So that means for every 1 step it goes up, it goes 3 to the right. Just chart it out and you should be able to get it from that. Since it is > and not =, that means Y (answer) is above the line.
391974
The dollar sign is used for absolute reference.\n\n$A1 means that although the row can change, the column will always be A.\n\nA$1 means that although the column can change, the row will always be 1.\n\n$A$1 means that the cell A1 will always be used no matter how many times you copy the formula.
1117062
if ur just solving that equation...u dont need to switch the sign.....\nwatch (im not gonna have the equal sign on the bottom takes too long). \n\nx-1<-3\n(add one to both sides now)\nx<-2\n\nthers ur answer
8215
"foo", "bar", and "foobar" are generally used as place holders by programmers; a way of saying "[insert your code/variable/constant/etc. here]".  Depending on the context in which you find it in the example code, you would replace "foo" in your own code with a function, a string literal, a variable, and so on.\n\nI haven't come across "_('foo')" in any of the PHP scripts I've looked at, though, but it seems unlikely (given PHP's rules of syntax) that it could represent a function or an escape sequence by itself; more than likely, it's meant to be replaced by something in your own code.
67095
The greater than symbol and number three side by side (<3) stand for love and/or friendship.  Tilt your head to the side and you should be able to see that it makes a heart shape.
757549
A (alt + 0178) would say A²
639598
it means exactly what it says.\nyou failed to supply a required argument for a function/object
200165
I will assume cos(x)^3 means (cos x)^3 and does NOT mean  cos(x^3)\nFirst start by separating the integral into two pieces.\nI will use "int" to stand for the integral sign.\nint{(cosx)^3/(cosx)^2}dx - int{(sinx)^2/(cosx)^2}dx\n\nNow (cosx)^3/(cosx)^2 = cosx\nand (sinx)^2/(cosx)^2 = (tanx)^2 = (secx)^2 - 1\nThus, the integral is now equal to \n\nint{cosx}dx - int{(secx)^2 - 1}dx\n\nThe antiderivative of cosx is sinx.\nThe antiderivative of (secx)^2 is tanx.\nThe antiderivative of -1 is -x.\n\nHence, the solution is \nsinx - tanx + x + C\n\n(The signs changed for tanx and -x because there was a negative sign in front of their integral, and the negative sign has to be distributed).
41266
(_o_)   Do you know what these symbols mean?\n\n (_x_)\n  \n (_!_)