# What Dth stands for?

5 views (last 30 days)
Barbara Fiorani on 2 Oct 2020
Commented: Walter Roberson on 2 Oct 2020
madhan ravi on 2 Oct 2020
What did you try for your homework?

Walter Roberson on 2 Oct 2020
It means that you have a variable named D and that you want the value of D to indicate which row number of H to access. If D had value 7 then you would want the "seventh" row. If it had value 8 then you would want the "eighth" row. If it had value 19, you would want the "nineteenth".
Explicit values such as 7 are "Cardinal" numbers -- numbers that tell you how much of something there is.
Designations such as "first" ("1st"), "second" ("2nd"), "third" ("3rd") are known as "Ordinal" numbers, and talk about the position of something. https://www.mathsisfun.com/numbers/cardinal-ordinal-nominal.html
So when refering to wanting to use the value stored in D as a position to look at, English would often use Ordinals -- most of which end in "th" in English. To refer to D as designating an Ordinal (position) English might then refer to the row . might also be written as or as . It means much the same thing as using the content of D as counting the number of rows that need to be dealt with (with the implication that the first (D-1) are not being paid attention to.)
##### 2 CommentsShowHide 1 older comment
Walter Roberson on 2 Oct 2020
I would need to see your code.

madhan ravi on 2 Oct 2020
Dth stands for the row 2 , index it to the matrix and use sum().
Walter Roberson on 2 Oct 2020
You should not be using rand() for this purpose. You should be using randi() .

### Categories

Find more on Data Types in Help Center and File Exchange

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by