Mathematics Stack Exchange
Mathematics Stack Exchange

Questions tagged [convention]

Use the convention tag for questions about standard, cultural practices in mathematics.

Use the convention tag to ask questions about standard practices in mathematics.

Examples include writing unknown variables as "$x$", including or excluding $0$ in the natural numbers, defining principal square roots to be positive, etc.

424 questions
0
votes
0 answers

Name for the convention where a semicolon is use to separate variables from parameters

It is somewhat common to write $f(x_0,x_1;\ z_0,z_1)$ to indicate that $f$ is a function of $x_0,\ x_1,\ z_0,\&\ z_0$, but that the $z$ arguments should be thought of as fixed by the context, while variation with respect to the $x$ arguments are…
GPU Programmer
  • 23
0
votes
1 answer

Plot Orientation of the 2d/3d Cartesian coordinates

Per convention, we draw a 2d Cartesian coordinates system as a '+' with the x-axis pointing right and the y-axis pointing up. When it comes down to making the plot 3d, by adding a z-axis, it's pretty common to rotate the plot and represent it with z…
Quora Feans
  • 1,059
0
votes
1 answer

Convention for 2-Space and 3-Space

I am curious by this following symbol which I see on the Math.SE alot which is the following: $$\mathbb{R}^2 \ \mathrm{or} \ \mathbb{R}^3$$ This this a convention to write 2-space or all reals 2-space, and respectively all reals 3-space? I am…
Jose M Serra
  • 2,583
0
votes
0 answers

Naming convention for percentages

I have a variable which I've named $TotalRecords$, and another variable which is a subset of $TotalRecords$ which I've named $ExistingFields$ If I calculate $(ExistingFields/TotalRecords) * 100 = x$ What are some naming conventions for the result of…
GreenFerret95
  • 1
0
votes
0 answers

Sin to the base 0 in windows calculator

In Windows-10 calculator, if I typed Sin(30 degrees) I am getting the answer 0.5 which is correct but it is displaying sin₀(30) = 0.5 My question is why sin has the zero subscript added to it?
Siva Manasan
  • 41
  • 6
0
votes
2 answers

Convention for symbol denoting a generic scalar quantity?

Is there a convention for a symbol to denote any generic scalar? Somehow I have in the back of my head that one would use $\lambda$ for that, but I cannot find any examples now.
jhansen
  • 103
0
votes
1 answer

Variable introduction convention to reduce redundant terms

Is there some guideline or mathematical norm for when to introduce new variables in order to reduce redundancy in an expression or equation? Say I have the…
Shon Verch
  • 101
  • 7
0
votes
1 answer

Proper way to represent repeating numbers

I have seen repeating numbers shown in all of the following ways: $$1.333\dots$$ $$1.\overline{3}$$ $$1.\overline{3}\dots$$ $$1.\overline{33}$$ $$1.\overline{33}\dots$$ $$1.\overline{333}$$ $$1.\overline{333}\dots$$ The ones using ellipses feel…
esote
  • 1,271
1
2