Error using cos Not enough input arguments. HELP
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Kayn
el 6 de Nov. de 2013
Comentada: Walter Roberson
el 29 de Jun. de 2021
Hi all,
Can anyone help me with this problem - Error using cos Not enough input arguments.
x=0:0.25:5.*pi;
y=0:0.25:2.*pi;
[x,y]=meshgrid(x,y);
z = cos.*((x).*sin(y)).*((1-3.*cos((y).^2))-(x.^2).*sin((y).^2)).*cos(x);
Error using cos Not enough input arguments.
I'm new to MatLab and I need to plot a contour map using this function but I can't seem to find a way to get rid of the error message. Any help would be much appreciated.
Thanks, Kayn.
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Respuesta aceptada
Azzi Abdelmalek
el 6 de Nov. de 2013
Editada: Azzi Abdelmalek
el 6 de Nov. de 2013
You missed something in cos.* ,maybe you want
z = cos(x).*((x).*sin(y)).*((1-3.*cos((y).^2))-(x.^2).*sin((y).^2)).*cos(x);
You missed something in cos.
4 comentarios
Más respuestas (2)
Diego David Tubay Lozano
el 6 de Mzo. de 2021
diff(sin^2*([cos^2*(x^2)]))
Error using sin
Not enough input arguments.
help.
1 comentario
Walter Roberson
el 6 de Mzo. de 2021
syms x
diff(sin(x)^2 * cos(x^2)^2, x)
or possibly you meant
syms x
diff(sin(cos(x^2)^2)^2, x)
Muhammad Syahmi Mohd Shamshul
el 28 de Jun. de 2021
5*cos(x)+4.2501-cos*(0.52367-x)
Error using cos
Not enough input arguments.
Error in Secant2 (line 13)
1 comentario
Walter Roberson
el 29 de Jun. de 2021
You have a function named Secant2 that takes at least one parameter, that is named x in the function.
When you ran the function Secant2 you did not provide any parameters at the time of the call. You probably just pressed the big green Run button. When you press the green Run button, MATLAB will run the function without providing any parameters. If you run a function that has a variable (such as x) defined as a parameter, but you run the function without providing a value in that position, then MATLAB will never go hunting around elsewhere looking for an "x" defined somewhere to use as the value in the function. For example,
x = pi/7
y = sin
if sin were defined like
function sx = sin(x)
then MATLAB will never go looking in the workspace to find the pi/7 value to use for the function. If you want a function to use a parameter, then you have to pass the parameter to it.
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