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- Vinny Graphics Sample Math Problems:
-
- Problem #1 Make an X,Y table from test data.
-
- Given:
- Test data:
- X Y
- 4.79 98.312
- 5.34 145.23
- 6.93 201.67
- 8.86 376.81
-
- Create an X,Y table with X going from 4 to 9
- in steps of 0.5. and round Y to 1 place.
-
- Solution:
- 1- FILE | OPEN | TEXT FILE | Math_Sam.txt
- (This opens this file in the Vinny Graphics text editor)
- 2- PREFER | enter Max Data Index of 30. Click OK.
- (Sets length of new data files equal to 30 rows)
- 3- FILE | NEW DATA. WINDOW | TITLE VERT.
- (Opens a new data set and arranges windows)
- 4- Drag mouse over above test data
- make sure to include both columns but
- do not include X Y titles.
- (Selects above data for the following copy)
- 5- EDIT | COPY.
- (Copies selected data to Windows clipboard)
- 6- Click on data set #1 cell [X1, 1]
- (Makes data set #1 active and selects cell [X1, 1])
- 7- EDIT | PASTE.
- (Pastes data from Windows clipboard starting in selected cell)
- 8- Right click data set #1 and select Y Fit.
- (Opens local pop up menu and then opens regression dialog)
- 9- Click 2nd Order Polynomial.
- (Does a 2nd Order Polynomial regression of the X,Y data in set #1)
- 10- Click OK.
- (Closes regression dialog and completes action)
- 11- FILE | NEW DATA.
- (Opens new data set #2)
- 12- MATH | FILL CELLS and enter the following values:
- Start Index : 1
- Stop Index : 11
- Start Value : 4
- Step Value : .5
- (This sets up user defined sequence)
- 13- Click the Operate button
- (This fills data set #2 X values between index 1 and 11 with the
- user defined sequence.)
- 14- Click OK.
- (Closes the Fill Cells dialog)
- 15- Click on data set #2 cell [X2, 1] then Drag mouse
- over X2 column data from 4 to 9.
- (Selects X2 data for the following copy)
- 16- EDIT | COPY.
- (Copies selected data to Windows clipboard)
- 17- Click on data set #1 title and then cell [X1, 5].
- (Selects data set #1 cell [X1, 5] for the following paste)
- 18- EDIT | PASTE.
- (Pastes data from Windows clipboard into empty X cells and
- then automatically fills in a corresponding curve fit value for Y)
- 19- Drag mouse over Y1 column data from 94.7... to 389.5...
- (Selects new Y1 data for the following math operation)
- 20- MATH | OPERATE on CELLS and select Operation Round(Cell)
- then enter 1 in the Constant K edit box.
- (Selects Rounds off operation sets up one decimal digit
- Note: The total, average and sigma are displayed for the
- selected group of cells)
- 21- Click the Operate button
- (This performs round off of selected cells to one
- decimal place. Note: The Y1 Fit is automatically
- cleared any time the data changes.)
- 22- Click OK.
- (Closes the Operate on Cells dialog)
-
-
- The data table should look like this:
-
- 4 94.7
- 4.5 102.9
- 5 115.8
- 5.5 133.5
- 6 155.9
- 6.5 183
- 7 214.8
- 7.5 251.4
- 8 292.7
- 8.5 338.7
- 9 389.5
-
- A graph of this data can be viewed by:
-
- 21- FILE | OPEN | GRAPH FILE | Math_Sam.gra. Click OK. Click Yes.
- (Closes data set #1 & #2 and opens Math Sample graph file.)
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