doc fplot
pwd

ans =

\\nask.man.ac.uk\home$\MATLAB

edit myf
edit startup.m
cd P:/public_html/PSBC/
pwd

ans =

P:\public_html\PSBC

ls

.                28-Jan-2015.txt  test.txt         
..               30-Jan-2015.txt  

edit myf
doc function
myf(0)

ans =

     0

myf(1)

ans =

    0.3415

myf(pi)

ans =

   -1.5708

pi

ans =

    3.1416


help linspace
 <strong>linspace</strong> Linearly spaced vector.
    <strong>linspace</strong>(X1, X2) generates a row vector of 100 linearly
    equally spaced points between X1 and X2.
 
    <strong>linspace</strong>(X1, X2, N) generates N points between X1 and X2.
    For N = 1, <strong>linspace</strong> returns X2.
 
    Class support for inputs X1,X2:
       float: double, single
 
    See also <a href="matlab:help logspace">logspace</a>, <a href="matlab:help colon">colon</a>.

    Overloaded methods:
       <a href="matlab:help distributed/linspace">distributed/linspace</a>
       <a href="matlab:help codistributor2dbc/linspace">codistributor2dbc/linspace</a>
       <a href="matlab:help codistributor1d/linspace">codistributor1d/linspace</a>
       <a href="matlab:help codistributed/linspace">codistributed/linspace</a>

    Reference page in Help browser
       <a href="matlab:doc linspace">doc linspace</a>

xs=linspace(0,pi,50);
plot(xs, myf(xs))
plot(xs, myf(xs))
plot(xs, myf(xs))
plot(xs, myf(xs))
plot(xs, myf(xs))
myf(1.8)

ans =

    0.0738

myf(1.7)

ans =

    0.1417

myf(1.9)

ans =

   -0.0037

pwd

ans =

P:\public_html\PSBC

edit testsolve
x=2

x =

     2

x=sin(x)/2

x =

    0.4546

x=sin(x)/2

x =

    0.2196

x=sin(x)/2

x =

    0.1089

x=sin(x)/2

x =

    0.0543

x=sin(x)/2

x =

    0.0272

x=sin(x)/2

x =

    0.0136

x=sin(x)/2

x =

    0.0068

x=sin(x)/2

x =

    0.0034

x=sin(x)/2

x =

    0.0017

x=sin(x)/2

x =

   8.4860e-04

x=sin(x)/2

x =

   4.2430e-04

x=3

x =

     3

x=sin(x)/2

x =

    0.0706

x=sin(x)/2

x =

    0.0353

x=sin(x)/2

x =

    0.0176

x=sin(x)/2

x =

    0.0088

x=sin(x)/2

x =

    0.0044

x=sin(x)/2

x =

    0.0022

x=sin(x)/2

x =

    0.0011

x=sin(x)/2

x =

   5.5064e-04

x=sin(x)/2

x =

   2.7532e-04

x=2*sin(x)

x =

   5.5064e-04

x=2*sin(x)

x =

    0.0011

x=2*sin(x)

x =

    0.0022

x=2*sin(x)

x =

    0.0044

x=2*sin(x)

x =

    0.0088

x=2*sin(x)

x =

    0.0176

x=3

x =

     3

x=2*sin(x)

x =

    0.2822

x=2*sin(x)

x =

    0.5570

x=2*sin(x)

x =

    1.0573

x=2*sin(x)

x =

    1.7421

x=2*sin(x)

x =

    1.9707

x=2*sin(x)

x =

    1.8422

x=2*sin(x)

x =

    1.9268

x=2*sin(x)

x =

    1.8746

x=2*sin(x)

x =

    1.9084

x=2*sin(x)

x =

    1.8871

x=2*sin(x)

x =

    1.9008

x=2*sin(x)

x =

    1.8921

x=2*sin(x)

x =

    1.8977

x=2*sin(x)

x =

    1.8941

x=2*sin(x)

x =

    1.8964

x=2*sin(x)

x =

    1.8949

x=2*sin(x)

x =

    1.8959

x=2*sin(x)

x =

    1.8953

x=2*sin(x)

x =

    1.8956

x=2*sin(x)

x =

    1.8954

x=2*sin(x)

x =

    1.8956

x=2*sin(x)

x =

    1.8955

x=2*sin(x)

x =

    1.8955

x=2*sin(x)

x =

    1.8955

x=2*sin(x)

x =

    1.8955

x=2*sin(x)

x =

    1.8955

x=2*sin(x)

x =

    1.8955

x=2*sin(x)

x =

    1.8955

x=2*sin(x)

x =

    1.8955

x=2*sin(x)

x =

    1.8955

x=3

x =

     3

x=3

x =

     3

x=3

x =

     3

x=3

x =

     3

x=3

x =

     3

testsolve

x =

    1.8955

2*sin(x)

ans =

    1.8955

2*sin(x)-x

ans =

   4.4409e-16

doc for
c=2

c =

     2

testsolve

x =

    1.8955

myf(1.9)
{Undefined function or variable 'c'.

Error in <a href="matlab:helpUtils.errorDocCallback('myf', '\\nask.man.ac.uk\home$\MATLAB\myf.m', 3)" style="font-weight:bold">myf</a> (<a href="matlab: opentoline('\\nask.man.ac.uk\home$\MATLAB\myf.m',3,0)">line 3</a>)
y = sin(x) - x/c;
} 
myf(1.9)
{Error using <a href="matlab:helpUtils.errorDocCallback('mrdivide')" style="font-weight:bold"> / </a>
Matrix dimensions must agree.

Error in <a href="matlab:helpUtils.errorDocCallback('myf', '\\nask.man.ac.uk\home$\MATLAB\myf.m', 3)" style="font-weight:bold">myf</a> (<a href="matlab: opentoline('\\nask.man.ac.uk\home$\MATLAB\myf.m',3,0)">line 3</a>)
y = sin(x) - x/c;
} 
c

c =

     2

global c
{Warning: The value of local variables may have been changed to match the
         globals.  Future versions of MATLAB will require that you
         declare
         a variable to be global before you use that variable.} 
c

c =

     []

c=2

c =

     2

myf(1.9)

ans =

   -0.0037

fplot(myf,[0,pi])
{Error using <a href="matlab:helpUtils.errorDocCallback('myf', '\\nask.man.ac.uk\home$\MATLAB\myf.m', 3)" style="font-weight:bold">myf</a> (<a href="matlab: opentoline('\\nask.man.ac.uk\home$\MATLAB\myf.m',3,0)">line 3</a>)
Not enough input arguments.
} 
fplot(myf,[0,pi])
{Error using <a href="matlab:helpUtils.errorDocCallback('myf', '\\nask.man.ac.uk\home$\MATLAB\myf.m', 3)" style="font-weight:bold">myf</a> (<a href="matlab: opentoline('\\nask.man.ac.uk\home$\MATLAB\myf.m',3,0)">line 3</a>)
Not enough input arguments.
} 
fplot(@myf,[0,pi])
doc fplot
c =3

c =

     3

fplot(@myf,[0,pi])
c=1

c =

     1

fplot(@myf,[0,pi])
fplot(@(x) sin(x),[0,pi])
fplot(@(x) sin(x)./x,[0,pi])
fplot(@(x) [sin(x)./x, sin(x)],[0,pi])
fquad(@(x) sin(x),[0,pi])
{Undefined function 'fquad' for input arguments of type
'function_handle'.
} 
doc fquad
quad(@(x) sin(x),[0,pi])
{Error using <a href="matlab:helpUtils.errorDocCallback('quad', 'C:\Program Files\MATLAB\R2012a\toolbox\matlab\funfun\quad.m', 66)" style="font-weight:bold">quad</a> (<a href="matlab: opentoline('C:\Program Files\MATLAB\R2012a\toolbox\matlab\funfun\quad.m',66,0)">line 66</a>)
The limits of integration must be scalars.
} 
quad(@(x) sin(x),0,pi)

ans =

    2.0000

doc fzero
fzero( @(x) sin(x)-x/2,3)

ans =

    1.8955

diary off