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©!2015,!Sight!Enhancement!Systems!
Page!25!of!35!
SciPlusB2500!Scientific!Calculator!–!User!Manual
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Note! from! the! above! example! that! it’s! perfectly! acceptable! to! enter! a! variable! as! an! expression!
(e.g.!TAN(45)).!!Provided!the!expression!can!be!resolved,!it’ll!just!enter!the!result!as!that!variable.!
You!will!notice!that,!as!these!values!are!entered!they!appear!in!the!middle!“results”!line.!!
At! any! time,! you! can! query! a! variable! by! simply! selecting! the! ENTER! key! without! a! value! or!
expression!after!the!variable.!!For!example,!
a=
↵
!!will!display!0.5!in!the!results!line.!!If!you!have!
not!yet!entered!a!value!for!a,!then!“a=…”!will!be!displayed!in!the!results!line.!
You!can!clear!any!variable!using!the!garbage!can.!!E.g.:!!!
a=
↵
!
4.
What’s&the&answer?
!!Once!all!four!variables!have!been!entered,!you!can!select,!!!
y=
↵
!to!display!
the!result!of!y!=!0.5!(xB2)
2
!–!TAN(45)!in!the!middle!line!(3.5!in!this!example!as!shown).!
If!the!equation!contains!a!divide!by!zero!condition,!
INFINITE&RESULT
!will!be!displayed.!
If!you!get!an!
UNDEFINED&VARIABLE
!message,!it!means!that!not!all!of!the!necessary!variables!have!
been!entered!yet.!!Zero!values!must!be!entered!as!such.!
5.
Changing&variables:
!!At!any!point,!you!can!change!one!of!the!values!of!a,!b,!c,!x!by!repeating!step!
‘3’!above.!!A!new!value!of!y!will!be!calculated!each!time!a!variable!is!entered.!
For!example,!to!find!the!value!of!y!=!a(xBb)
2
!B!c!for!a!new!value!of!x=4,!simply!enter!!!
x= 4
↵
.!
Summary of Contents for SciPlus-2500
Page 1: ...User Guide...
Page 2: ......
Page 5: ...2014 Sight Enhancement Systems version 1 2...
Page 6: ......
Page 35: ...2015 Sight Enhancement Systems Page 29 of 35 SciPlusB2500 Scientific Calculator User Manual...
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Page 44: ...364 Huron Avenue South Ottawa Ontario K1Y 0W7 CANADA www sightenhancement com...