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if you want to make any kind of calculator... |
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| Submitted on: 11/23/2003 9:52:41 AM
By: Bryant Zadegan
Level: Beginner
User Rating: Unrated
Compatibility:VB 3.0, VB 4.0 (16-bit), VB 4.0 (32-bit), VB 5.0, VB 6.0, VB Script, ASP (Active Server Pages) , VBA MS Access, VBA MS Excel
Users have accessed this article 300 times.
| (About the author) |
| | | DONT VOTE!!!!!!!!!!!!!!!!!!!!!!!!!!!!
this is simply to help the person who wants to make his furst good program
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4) You will abide by any additional copyright restrictions which the author may have placed in the article or article's description. | I looked at the microsoft calculator today and entered the command 0^0 (zero to the zero power), and the response i got was astonishing! last i checked, 0^0 is undefined. The Microsoft calc sed it was one!.
i later hacked the calculator open and, as no surprise, discovered a simple if-then statement was responsible.
the statement very simply sed:
(actual control names not used)
(All names of subs and functions simulated)
If lblDisp.caption="0" then
.....
If xUPy = true then call finResult(1)
.....
End If
What it SHOULD HAVE BEEN:
call doMicrosoftMath (x, y, toPower)
or it could have been:
If lblDisp.caption="0" then
.....
If xUPy = true then
If x = 0 and y = 0 then
Call finResult(Undefined!)
Else
call finResult(1)
End If
End If
.....
End If
What am i trying to say? If youre going to make a calculator that takes x to the y power, make sure that 0^0 is undefined! otherwise, your calculators will be criticized the way I laid microsoft down just now!
also, use common sense have the calculator actually DO THE MATH rather than follow wimpy if-then statements!!!!!
for those of you that dont know how to do the topower thing, watch:
Function ToPower(num1 As Long, num2 As Long) As Long
'Bring num1 to the power (exponent) of n
' um2
On Error GoTo error
ToPower = Val(num1) ^ Val(num2)
Exit Function
error: MsgBox Err.Description, vbExclamation, "Error"
End Function
--excerpt from Infrared's source.bas
math is done here: x^y where the ^ is the actual operator. to call, type:
call ToPower (x,y)
where x is the number and y is the power.
to end the article i will reinforce one thing:
DDOONNTT VVOOTTEE!!!!!! | |
Other 2 submission(s) by this author
| | | | | Report Bad Submission | | | | | Your Vote! | |
See Voting Log | | | | Other User Comments | 11/23/2003 3:29:46 PM:
What are you talking about?? My Win2k
calc says its undefined:
Result of
function is undefined.
Since you
said dont vote, you get 0^0 globes.
| 11/23/2003 4:52:59 PM:Bryant Zadegan
im using windows xp
| 11/23/2003 4:55:35 PM:Bryant Zadegan
also, as a side note, change the
calculator format to scientific, and
hit the x^y button
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