6. Spreadsheets are code
I have made it my life’s work to
spread the happy word
“Spreadsheets are code!”
7. Spreadsheets are code
I have made it my life’s work to
spread the happy word
“Spreadsheets are code!”
If you don’t immediately believe
me, I have three reasons*
* If you do believe me, skip the next 10 slides ;)
9. This tool (for stock price
computation) could have been
built in any language. C,
JavaScript, COBOL, or Excel.
The problems Excel is used for are
often (not always) similar to
problems solved in different
languages.
11. 2) Formulas are Turing complete
I go to great lengths to make my
point. To such great lengths that I
built a Turing machine in Excel,
using formulas only.
12. Here you see it in action. Every row
is an consecutive step of the lint.
This makes it, in addition to a proof
that formulas are Turing complete,
Also a nice visualization of a Turing
machine.
54. Thanks for viewing the slides for
Spreadsheets: are code!
Want to know more?
• Visit my sites
felienne.com
spreadsheetlab.org
• Send a tweet
@felienne
• Send an email
mail@felienne.com