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 Author Topic: this is how to make display show in scientific format 0.00E00 like tracker  (Read 5308 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
lookang
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 « Embed this message on: August 10, 2010, 09:10:53 am » posted from:SINGAPORE,SINGAPORE,SINGAPORE

Format
The format used to display the value, i.e. the number of decimal digits with which to display the value.   Type 0.0 with one or more zeros after the point.

http://www.um.es/fem/EjsWiki/Main/ElementsSlider

i just try 0.00E00 and it works!
cool man

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lookang
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 « Embed this message Reply #1 on: August 10, 2010, 09:13:19 pm » posted from:Singapore,,Singapore

Dear Ejs learning community

I have a question.

I have a custom function
double dv;
public String double2String(double v,double divider){
if(v > 0)dv=0.5;
else if(v < 0)dv=-0.5;
else dv=0;
return (int)(v*divider+dv)/divider+"";
}

the string called cannot display the values correctly
for example
s_E2 = " {g_net} = 6.67*10^{ - 11} *( " +double2String(m1,10.)+")"+"/("+double2String(x1-xtest,10.)+"){^2}" ;

how can the codes be modified to display in scientific form?

this doesn't work
s_E2 = " {g_net} = 6.67*10^{ - 11} *( " +double2String(m1,0.00E00)+")"+"/("+double2String(x1-xtest,0.00E00)+"){^2}" ;

any tips?

i think must rewrite the custom function but i don't know how to start
or is there some open source physics function that can do this?
 errorwith00e00.png (2.12 KB, 266x81 - viewed 428 times.) *** There are 1 more attached files. You need to login to acces it! « Last Edit: August 10, 2010, 09:15:26 pm by lookang » Logged
lookang
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Posts: 1792

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 « Embed this message Reply #2 on: August 11, 2010, 08:05:48 am » posted from:SINGAPORE,SINGAPORE,SINGAPORE

http://www.um.es/fem/EjsWiki/Main/ElementsSlider

edited the wiki to include

Format
The format used to display the value, i.e. the number of decimal digits with which to display the value.
Type 0.0 with one or more zeros after the point. or 0.00E00 for scientific notation
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"That their main business was not put into the mind knowledge which was not there before, but to turn the mind's eye towards light so that it might see for itself." ...Plato's advice to educators(429-347BC)