Trident Help

Classic Scientific 30 manual · Chapter 11 of 13

Function table

Make a table of values for a function with a start value and a step.

11.1Make a table of values#

TABLE SETUP. The display shows: TABLE SETUP / y= / Start=0 / Step=1.
TABLE SETUP.

Press table to open TABLE SETUP. Type your function in the y line using the variable x yzt abcd (x), then press enter and fill in Start (the first x value) and Step (how far x moves each row). Press enter on the last field to build the table. The table shows x on the left and y on the right, and the bottom line shows the selected y value.

Example 11.1

Table of squares

  1. Enter x² for y and accept the start value 0 and step 1.

    tablex yzt abcdx²enterenterenter
Result of the example "Table of squares" The display shows: x | y / 0 | 0 / 1 | 1 / 2 | 4 / 3 | 9 / 4 | 16 / 5 | 25 / 6 | 36.
You should seex y 3 9 5 25
Example 11.2

Start at 1 and step by 2

  1. y = x × 2, start 1, step 2.

    tablex yzt abcd×2enter1enter2enter
Result of the example "Start at 1 and step by 2" The display shows: x | y / 1 | 2 / 3 | 6 / 5 | 10 / 7 | 14 / 9 | 18 / 11 | 22 / 13 | 26.
You should see1 2 3 6 5 10
Example 11.3

Select a row

  1. Press down to move the selection. The bottom line shows its y value.

    tablex yzt abcdx²enterenterenter▼▼▼
Result of the example "Select a row" The display shows: x | y / 0 | 0 / 1 | 1 / 2 | 4 / 3 | 9 / 4 | 16 / 5 | 25 / 6 | 36.
You should seey=9

See also Make a table of values

11.2Scroll, extend and change the table#

Press ▼ and ▲ to move through the rows. The table starts with 30 rows and adds one more each time you press ▼ at the end. Press table again to go back to the setup and change the function, start or step. Leave with 2ndquitmode.

Example 11.4

A function with an error row

  1. 1 divided by x has no value at x = 0, so that row shows Error.

    table1n/dx yzt abcdenterenterenter
Result of the example "A function with an error row" The display shows: x | y / 0 | Error / 1 | 1 / 2 | 0.5 / 3 | 0.3333333333 / 4 | 0.25 / 5 | 0.2 / 6 | 0.1666666667.
You should see0 Error 1 1 2 0.5

TI-30XS MultiView is a trademark of Texas Instruments Incorporated. Trident Calculator is an independent product by South View Studios and is not affiliated with, sponsored by or endorsed by Texas Instruments. The name is used only to describe the kind of calculator this model resembles; Trident's names, keys, display, fonts and software are its own clean-room design.