Questions asked by Jim H

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• Is there a way to delete a scratchpad?
  
• How do I change #int_0^1int_0^sqrt(1-x^2)int_sqrt(x^2+y^2)^sqrt(2-x^2-y^2)xydzdydx# to cylindrical or spherical coordinates?
  
• I'd like to add links to key phrases in my answer (like Link Owl does). Is there an easy way to do that?
  
• I am no longer able to write comment on the mobile app? (Using a Samsung android phone.)
  
• Why are so many people under the impression that we need to find the domain of a rational function in order to find its zeros? Zeros of #f(x) = (x^2-x)/(3x^4+4x^3-7x+9)# are #0,1#.
  
• Can we please have the old ability to delete our own comments back? I sometimes (often?) have a typographic error in a comment. I used to be able to correct the error and delete the incorrect comment. I can no longer do that.
  
• Sometimes (especially with fairly new members) I can't get their @mention name to show up. I suggest putting the @ mention name on the profile page. (I can get to that and could look it up.) I ask?
  
• I can no longer see my past activity older than a week or so. (On my profile page) I used to be able to go back to my old answers for formatting and other reasons. Can we have the ability to see old activity back, please?
  
• Useful to plot points on Socratic Graph?
  
• Graphing vertical lines on Socratic?
  
• Does anyone have a better method for restricting the domains of graphs using Socratic software?
  
• How about an easy to find a link to basic equation formatting? Perhaps when someone clicks " Ask a question" -- like we get when we click "Answer".
  
• Can we please have a topic in Calculus for the Intemediate Value Theorem. It belongs in Limits right after Continuous Functions?
  
• While I'm asking, could we also have a section in Calculus, Limits for The Squeeze Theorem? I think it should go after Limits at Infinity and Horizonatal Asymptotes.
  
• I am not familiar with "increasing at a point". I know that #f(x) = x^3# is increasing on the whole real line, but since #f'(0)=0# do some people say that it is not increasing at #x = 0#?
  
• Should we have a topic "Average Value" in Calculus -- Applications of Definite Integrals? I keep seeing questions asking for average value posted under average rate of change.
  
• For the complex number #1+3sqrt2i# are the forms #1+3isqrt2# and #1+i3sqrt2# both widely accepted violations of strict standard form #a+bi#?
  
• Do psychologists distinguish between adding and subtracting something to make behavior less likely? (As they do with positive and negative reinforcements to make behavior more likely.)
  
• Why must sources be credited so exactly? (Not just at Socratic, but in general.)
  
• I've been noticing an increase in questions asked two or more times by the same person. How can we improve this?
  
• Higher derivatives of sine form a 4-cycle. Integer powers of #i# form a 4-cycle. What is the connection (if there is one)?