Evaluation of Definite Integral

01232018, 03:57 PM
Post: #1




Evaluation of Definite Integral
I am getting definite integral answers which are off by one decimal place.
For Example: Evaluate this definite Integral from zero to 1 and I should get approximately 0.620 but I am getting 0.0620 EVAL( CAS.int( ∫1...0 (e^x)/(1+e^x ⅆx ) Does anyone know why I am off by a decimal place? Also EVAL( CAS.int( ∫1...0 (e^x) ⅆx ) should be approximately 0.6321 but I am getting 0.06321. Thanks  Cheers! I am doing this from the HOME Display. 

01232018, 04:14 PM
(This post was last modified: 01232018 04:20 PM by salvomic.)
Post: #2




RE: Evaluation of Definite Integral
hi,
you can avoid to use EVAL() and CAS.int: simply input the integral via the template via shiftC key... otherwise control better how to input via EVAL() using Catalog to input int() and use X (upper, D key, and not lowercase), don't input "by hand", because it could be a little (still not well documented) bug in the present version of FW that produce "d1" or something instead of dx, when there are spaces, I think. With Template (or EVAL() and int() via Catalog) you get the correct answer. If still there is error, purge the X variable. Salvo ∫aL√0mic (IT9CLU) :: HP Prime 50g 41CX 71b 42s 39s 35s 12C 15C  DM42, DM41X  WP34s Prime Soft. Lib 

01232018, 09:37 PM
Post: #3




RE: Evaluation of Definite Integral
Thank you Salvomic  It works for me now  Cheers!


01232018, 10:00 PM
Post: #4




RE: Evaluation of Definite Integral
(01232018 09:37 PM)MullenJohn Wrote: Thank you Salvomic  It works for me now  Cheers! Well! ciao ∫aL√0mic (IT9CLU) :: HP Prime 50g 41CX 71b 42s 39s 35s 12C 15C  DM42, DM41X  WP34s Prime Soft. Lib 

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