In EXCEL Formula Bar: Allow display of formulas/equations in standard math format (visual friendly) [aka equation plotting]
Allow toggle between math Formula display (easy to read math...think TI89, mathCAD, WolframAlpha, etc) and the single line that goes on forever. Even better, as you are typing in the formula bar, allow for the visual display of what the formula/equation would look like if you wrote it out by hand, or used a program like the above.
Verifying formulas in Excel is extremely challenging due to having to follow references, AND keeping track of multiple parenthesis, division and other mathematical operators. This would be a tremendous time saver for verifying formulas/equations are correct.
EXAMPLE: To see what I mean, go to WolframAlpha website and type "(4+5)/2sin(x)" to see how this looks in the "input" section.
http://www.wolframalpha.com/input/?i=%284%2B5%29%2F2sin%28x%29
Thanks for the feedback. We’ll consider this for a future release. Please continue to vote on this feature request which will increase its likelihood of getting in the product.
Thanks,
Scott [MSFT]
8 comments

Kenneth Barber commented
I very much like this idea. However, if it is not implemented, then at the very least, Excel should AutoCorrect the formula notation to be more readable and take advantage of Unicode. For example:
•  (hyphenminus) becomes − (minus sign)
• * becomes ×
• / becomes ÷
• <> and != become ≠
• <= and =< become ≤
• >= and => become ≥
• * becomes ×
• SQRT, ^0.5, ^(1/2), POWER(,0.5) etc. become √
• ^(1/3), POWER(,1/3), etc. become ∛
• ^0.25, ^(1/4), POWER(0.25), etc. become ∜
• ^23, POWER(,23), etc. become ²³
• SUM becomes ∑
• PRODUCT becomes ∏
• ABS becomes  
• FLOOR.MATH becomes ⌊ ⌋
• CEILING.MATH becomes ⌈ ⌉
• B1:B3 A2:C2 becomes (B1:B3)∩(A2:C2)
• LOG(,23) becomes log₂₃
• EXP(23) becomes e²³
• PI() becomes π
• 0.5 and 1/2 become ½. Have similar conversions for ¼ ¾ ⅒ ⅓ ⅔ ⅕ ⅖ ⅗ ⅘ ⅙ ⅚ ⅛ ⅜ ⅝ ⅞. 
Anonymous commented
It would be nice to be able to multiply and divide algebraic expressions such as 3x^2(xy^2z^4) in Excel

Denis Borovskoy commented
Do you remember how to enter the formula using the Word pi icon (Alt + =)?! And the formula is obtained in the form of a book with a complicated writing not a single line. (For example: the numerator is in the top above the line, denominator below the line.) As such, the formula is more understandable. I suggest using this input for the menu functions in Excel. Nonlinear formula for the function area (fx=) in Excel like it implemented in the Word(Alt + =)! It's great!

Lawrence commented
Awesome!

Kenneth Barber commented

Lawrence commented
Scott, thanks for the update and am really glad this is being considered by MS!

Gareth Hayter commented
There are some thirdparty addins which do this right now:
FormulaDesk: http://www.formuladesk.com
FxRender: https://www.codecogs.com/products/formula_render/about.php

Lawrence commented
It looks like there are multiple user feedback forums for the same product, which I don't get. But a similar idea is here:
https://office365.uservoice.com/forums/264636general/suggestions/8805151inexcelformulabarallowdisplayofformulasin
And here:
http://officeforms.uservoice.com/forums/243309general/suggestions/9465771inexcelformulabarallowdisplayofformulasin