# Charting a mathematical equation using Excel and defined names

## Sample Equations

I'd like to invite the readers to provide nice sample equations!

Contact me when you have found some nice examples to add here.

A sample file can be downloaded here.

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I'd like to invite the readers to provide nice sample equations!

Contact me when you have found some nice examples to add here.

A sample file can be downloaded here.

## Comments

Showing last 8 comments of 42 in total (Show All Comments):Comment by: Jan Karel Pieterse (20-2-2014 18:41:20)

Unfortunately, Excel 2003 worked just fine, but later versions seem not to like this technique very much.

I lack time to try and figure out what is wrong though, sorry!!

Comment by: Raj (4-6-2015 07:30:39)

xStart=-4

xEnd = 4

xNoOfPoints=99

Formula=(sqrt(cos(x))*cos(500*x)+sqrt(abs(x))-0.4)*(4-x*x)^0.1

Comment by: Raj (5-6-2015 15:25:51)

y=evaluate(formula)+0*x

and saving workbook in xlsm format (Macro Enabled Work Book)

Comment by: Shubhangi (23-6-2015 21:11:43)

Comment by: Jan Karel Pieterse (24-6-2015 11:30:06)

Enter sin(x) in cell B1

Enter 0 in b3

Enter 6.28 in B4

Enter 2000 in B5

Comment by: CoolKoon (28-11-2015 22:38:32)

Comment by: Jan Karel Pieterse (30-11-2015 12:14:20)

The download file works just fine in Excel 2016, so I figure something else must be wrong with your attempt to replicate.

Comment by: Alfred (5-8-2016 05:14:47)

1. The scope of each and every named range MUST be the sheet that the chart is on.

2. Each and every formula that references the named range, MUST include the sheet name eg. Sheet1!Formula

3. The suggestion to add +0*Sheet1!x to the EVALUATE function will allow the workbook to open without producing an error message about one or more names not being correct.

4. If the formula to chart starts with a negative the addition of ' at the beginning will prevent Excel from trying to turn the entry into a formula for cell B1 eg. '-2*x^2+1

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