#Partial derivatives:What does it mean when 0/0

20 messages · Page 1 of 1 (latest)

desert fieldBOT
#
  1. Ask your question and show the work you've done so far. If you've posted a screenshot of a question, specify which part you need help with.
  2. Wait patiently for a helper to come along.
  3. Once someone helps you, say thank you and close the thread with:
    +close
    
  4. Feel free to nominate the person for helper of the week in #helper-nominations
  5. Do not ping the mods, unless someone is breaking the rules.
  6. If you're happy with the help you got here, and the server overall, you can contribute financially as well:
vapid jacinth
#

so , my problem with this is that once it is done it gives out 0/0, does that happen in these exercises when well done? if so, what should i do next? what value does it mean

sacred robin
#

$$ \frac{\partial f}{\partial x}(0,0) = \lim _{x\to 0} \frac{f(x,0)-f(0,0)}{x} = \lim _{x\to 0} \frac{0-0}{x} = 0 $$

gentle geyserBOT
sacred robin
#

@vapid jacinth

#

no, if the partial derivative exists it's a well defined number

#

not 0/0

vapid jacinth
#

hm

#

but look

#

f(0,0) is 0/0

sacred robin
#

nope

#

it's 0

vapid jacinth
#

fuck

#

right

#

cool

#

i think i got to be honest now

#

+close