Integral in solve

07132014, 06:05 PM
Post: #1




Integral in solve
How would I set up an integral in solve app to, say, have integral x^2 from 0 to y = 20?


07142014, 08:17 AM
Post: #2




RE: Integral in solve
(07132014 06:05 PM)lrdheat Wrote: How would I set up an integral in solve app to, say, have integral x^2 from 0 to y = 20? Do you mean \(\int_0^{20}x^{2} dx\) ? That's not an equation, it's just an expression. To evaluate an expression, just type it into Home or CAS; this one evaluates to 8000/3. The Solve app is for solving equations. If I misunderstood your question, what equation you want to solve? <0ɸ0> Joe 

07142014, 08:38 AM
Post: #3




RE: Integral in solve
(07142014 08:17 AM)Joe Horn Wrote:(07132014 06:05 PM)lrdheat Wrote: How would I set up an integral in solve app to, say, have integral x^2 from 0 to y = 20? He says equals to 20, so it is an equation. Not solvable in the solver. My website: erwin.ried.cl 

07142014, 12:44 PM
Post: #4




RE: Integral in solve  
07142014, 04:37 PM
Post: #5




RE: Integral in solve
(07132014 06:05 PM)lrdheat Wrote: How would I set up an integral in solve app to, say, have integral x^2 from 0 to y = 20? This works fine. However, if you tried this and it didn't work, it is probably because you accidentally did x^2d(x=20) instead of (x^2)dx =20 Make sure you press the right arrow once after to move out of the variable of integration template location before your =20. TW Although I work for HP, the views and opinions I post here are my own. 

07142014, 09:57 PM
Post: #6




RE: Integral in solve  
07152014, 02:09 AM
Post: #7




RE: Integral in solve
I've tried the syntax (and other variations) suggested by Anderson, Tim, and CR. In each case, when I go into Num template and submit a guess, I get "bad guess(es)". Could I be in an odd operating mode?


07152014, 02:48 AM
Post: #8




RE: Integral in solve
(07152014 02:09 AM)lrdheat Wrote: I've tried the syntax (and other variations) suggested by Anderson, Tim, and CR. In each case, when I go into Num template and submit a guess, I get "bad guess(es)". Could I be in an odd operating mode? I get the same :/ that's why I said it was not solvable in that app. I tried with int and with the template too. My website: erwin.ried.cl 

07152014, 06:09 AM
Post: #9




RE: Integral in solve
(07152014 02:48 AM)eried Wrote:(07152014 02:09 AM)lrdheat Wrote: I've tried the syntax (and other variations) suggested by Anderson, Tim, and CR. In each case, when I go into Num template and submit a guess, I get "bad guess(es)". Could I be in an odd operating mode? See Tim's reply above. If you're using Textbook Entry mode, you have to press rightcursor between typing dX and typing =20. <0ɸ0> Joe 

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