About scientific notation
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About scientific notation
Hello.
I'm new user of Smart Math Calculator (free pack).
I was calculating the mass of a part (volume Ũ density) with the following expression:
488.5*pi/4*25*7.85E3
But the result is n/a. Plese, could you to explain me how is the right method to write the expression.
Thank you,
Best regards,
Estrongest
Country: Venezuela
I'm new user of Smart Math Calculator (free pack).
I was calculating the mass of a part (volume Ũ density) with the following expression:
488.5*pi/4*25*7.85E3
But the result is n/a. Plese, could you to explain me how is the right method to write the expression.
Thank you,
Best regards,
Estrongest
Country: Venezuela
Estrongs Guest
Re: About scientific notation
You can't type 7.85E3 in this form, you must use 7.85*10^(3) instead.
So:
488.5*pi/4*25*7.85*10^(3)
In the next release we will hopefully add the feature to recognize the scientific forms of numbers.
So:
488.5*pi/4*25*7.85*10^(3)
In the next release we will hopefully add the feature to recognize the scientific forms of numbers.
runiter Admin
 Posts : 132
Join date : 20071205
Age : 38
Location : Boston, MA, USA
Re: About scientific notation
there should also be the possibility to type a sqrt for the square root, because most equations come in this form it is annoying to replace them with the √ sign and then replace it back before sharing the equation (in most boards √ turns to v)
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
by the way and back to topic, i always use the form
488.5*pi/4*25*(7.85E3)
(it aso works to put the E in a ()
488.5*pi/4*25*(7.85E3)
(it aso works to put the E in a ()
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
That's a good idea. I will add it to out to do list.Yukterez wrote:there should also be the possibility to type a sqrt for the square root, because most equations come in this form it is annoying to replace them with the √ sign and then replace it back before sharing the equation (in most boards √ turns to v)
Meanwhile there is a simple way that allows you to do that yourself. Simply add the following function to the global library of Smart Math Calculator:
sqrt(x)=√x
This way everytime you type sqrt(x) it will be same as typing √x
runiter Admin
 Posts : 132
Join date : 20071205
Age : 38
Location : Boston, MA, USA
Periodic Notation
is there any notation for periodic numbers like 1/7 = 0,Ŋ142857 or 0,142857, or do I have to type 0,142857142857142857142857142857 etc if I donīt know the fraction value ?
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
You would have to type it (copy and paste would be easier naturally).
I'm not sure how often people need this kind of fractions but if there is demand for it I can add it to a future version.
I'm not sure how often people need this kind of fractions but if there is demand for it I can add it to a future version.
runiter Admin
 Posts : 132
Join date : 20071205
Age : 38
Location : Boston, MA, USA
Re: About scientific notation
Where is this global Lib ?Admin wrote:Meanwhile there is a simple way that allows you to do that yourself. Simply add the following function to the global library of Smart Math Calculator:
sqrt(x)=√x
This way everytime you type sqrt(x) it will be same as typing √x
Screenshot of my directory: http://666kb.com/i/byeqt4dkeztoyqkqt.jpg
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
Hi Yukterez,
The file that contains global function definitions are saved here:
C:\Users\YOUR_USER_NAME\AppData\Roaming\Runiter\Smart Math Calculator\Functions.cfg
The file that contains global function definitions are saved here:
C:\Users\YOUR_USER_NAME\AppData\Roaming\Runiter\Smart Math Calculator\Functions.cfg
runiter Admin
 Posts : 132
Join date : 20071205
Age : 38
Location : Boston, MA, USA
Re: About scientific notation
Admin wrote:Hi Yukterez,
The file that contains global function definitions are saved here:
C:\Users\YOUR_USER_NAME\AppData\Roaming\Runiter\Smart Math Calculator\Functions.cfg
but when i go there i have only 3 files in that directory:
http://666kb.com/i/byevqt39wfqa061xd.jpg
sorry for bothering, but i always get the formulas with sqrt and my notepad++ doesnīt save the root symbol either (converts it into a v)
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
That's probably because your global function list is empty.
Did you add a new function to your function library?
Did you add a new function to your function library?
runiter Admin
 Posts : 132
Join date : 20071205
Age : 38
Location : Boston, MA, USA
arcosh / acosh
No, I didnīt
But by the way you should add a arcosh (sometimes called acosh, not to be confused with acos) function so i can solve
cosh(a)=b
a=acosh(b)
Now I have to type
arcosh(x) = ln(x+√(x^21))
but unfortunately the "LN" fuction has that speed bug (:
But by the way you should add a arcosh (sometimes called acosh, not to be confused with acos) function so i can solve
cosh(a)=b
a=acosh(b)
Now I have to type
arcosh(x) = ln(x+√(x^21))
but unfortunately the "LN" fuction has that speed bug (:
Yukterez Posts : 22
Join date : 20110803
another few questions
I duplicated another cfg File and filled in sqrt(x)=√xAdmin wrote:That's probably because your global function list is empty.
Did you add a new function to your function library?
http://666kb.com/i/byeyceryu8kc9winu.jpg ← Sreenshot
but it doesnīt work
Of course I closed the smc and reloadet it, but doesnīt work...
I had to save the cfg file to Unicode, ANSI didnīt take the root symbol
maybe thatīs why it doesnīt work ?
when I get it to work, will it also be possible to define new variables like y=123 etc ? do i seperate the functions or variables by comma or enter ?
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
Ok I now addert a new "Functions" Entry with function with field "Function": sqrt(x) / "Description": √x
which didnīt work, so I deleted the entry but there was a new "Functions.cfg" where I pasted the entry you suggested:
sqrt(x)=√x
I had to save the file in Unicode again instead of the old ANSI format because of the symbol, but it still doesn't work:
>> http://666kb.com/i/byf6jixeivcpg8nzu.png << Screenshot
which didnīt work, so I deleted the entry but there was a new "Functions.cfg" where I pasted the entry you suggested:
sqrt(x)=√x
I had to save the file in Unicode again instead of the old ANSI format because of the symbol, but it still doesn't work:
>> http://666kb.com/i/byf6jixeivcpg8nzu.png << Screenshot
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
oh no, you should never edit the Function.cfg file!!
When you create a new Function, type the entire expression sqrt(x)=√x in front of "Function:"
You don't need to type anything in "Description" field.
When you create a new Function, type the entire expression sqrt(x)=√x in front of "Function:"
You don't need to type anything in "Description" field.
runiter Admin
 Posts : 132
Join date : 20071205
Age : 38
Location : Boston, MA, USA
Re: About scientific notation
Thanks a lot ! Now I also was able to define
acosh(x)=ln(x+√(x^21))
and all the kilometerlong time variables that define some giga light years in meters and such like the time since the big bang in seconds etc (: that will save me a lot of work, even if it was some work to figure out how to do so (:
acosh(x)=ln(x+√(x^21))
and all the kilometerlong time variables that define some giga light years in meters and such like the time since the big bang in seconds etc (: that will save me a lot of work, even if it was some work to figure out how to do so (:
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
It's good that you brought this to my attention.
Perhaps adding new function is not as obvious as it should've been. I will make some improvements in the user interface in the next release.
Perhaps adding new function is not as obvious as it should've been. I will make some improvements in the user interface in the next release.
runiter Admin
 Posts : 132
Join date : 20071205
Age : 38
Location : Boston, MA, USA
another suggestion
in the next update maybe you should add a dialogue field when one klicks on the delete a function button (the minus sign)  it is too close to the add (+) and edit (i) button, i already deleted a bunch of functions (good that i made a backup in the forum so i could easily restore them) (:
Yukterez Posts : 22
Join date : 20110803
Re: About scientific notation
Good point, adding to todo list.
runiter Admin
 Posts : 132
Join date : 20071205
Age : 38
Location : Boston, MA, USA
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