Help with basic MATLAB syntax
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[EDIT: Jun. 14, 17:42:47 UTC - Reformat MKF]
how i write this in matlab
sin(cos(eln25))+100(55/7-1000tan(.23))
2 Comments
Walter Roberson
on 14 Jun 2011
55/7 is an approximation of 2*pi . That suggests to me that perhaps your tan expression is intended to be an arctan expression ?
Accepted Answer
Matt Fig
on 14 Jun 2011
sin(cos(eln25))+100*(55/7-1000*tan(.23))
Assuming eln25 is a variable with numerical value, or a function which returns a number.
5 Comments
Walter Roberson
on 14 Jun 2011
Sure, but the challenge might be to learn how to code it anyhow. After all the entire expression is constant and could be replaced by a single number.
More Answers (2)
Matt Tearle
on 14 Jun 2011
Just for Sean:
function doodle
hf = figure;
ha = axes('units','normalized','position',[0,0,1,1],...
'XLim',[0,1],'XTick',[],'YLim',[0,1],'YTick',[]);
set(hf,'WindowButtonDownFcn',@startdraw)
uiwait(hf)
function startdraw(src,~)
set(src,'pointer','crosshair')
cp = get(ha,'CurrentPoint');
xinit = cp(1,1); yinit = cp(1,2);
hl = line('XData',xinit,'YData',yinit,...
'color','k','linewidth',2);
set(src,'WindowButtonMotionFcn',@movedraw)
set(src,'WindowButtonUpFcn',@enddraw)
function movedraw(~,~)
cp = get(ha,'CurrentPoint');
xdat = [get(hl,'XData'),cp(1,1)];
ydat = [get(hl,'YData'),cp(1,2)];
set(hl,'XData',xdat,'YData',ydat);
drawnow
end
function enddraw(src,~)
set(src,'Pointer','arrow')
set(src,'WindowButtonMotionFcn',[])
set(src,'WindowButtonUpFcn',[])
uiresume(hf)
end
end
end
0 Comments
Sean de Wolski
on 14 Jun 2011
- Open the editor and a new blank file or the command line
- Copy the above into it
That will have then been written in MATLAB!
0 Comments
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