How to type sin function with square
显示 更早的评论
I'm working with O.D.E in matlan and I found that I cannot type sin square x. Is there any particular syntax for that or is there any other way?
采纳的回答
@John Sanjai J, are you expecting this?
syms x
expr = sin(x)^2
5 个评论
John Sanjai J
2023-11-20
编辑：John Sanjai J
2023-11-20
If you want to be safe then use parenthesis:
syms x
expr = (sin(x))^2
sin(pi/4)^2 % should return (1/√2)² = 1/2
John Sanjai J
2023-11-21
Sam Chak
2023-11-21
The expression sin(x)^2 is equivalent to the mathematical notation 
, if I have interpreted your syntax 'sin square x' correctly. However, if there is any misunderstanding, please provide the proper mathematical notation using LaTeX to avoid ambiguity.
, if I have interpreted your syntax 'sin square x' correctly. However, if there is any misunderstanding, please provide the proper mathematical notation using LaTeX to avoid ambiguity.
syms x
char(sin(x)^2)
char(sin(x)*sin(x))
char(sin(x^2))
char(sin(x * x))
更多回答（1 个）
While the usual mathematical notation to compute the square of the sine of x is 
, the MATLAB code to perform that computation is sin(x)^2 (or, since you likely want to compute the square of the sine element-wise, sin(x).^2).
, the MATLAB code to perform that computation is sin(x)^2 (or, since you likely want to compute the square of the sine element-wise, sin(x).^2).x = 0:pi/4:2*pi
sin(x).^2
You cannot put the squaring operator between the name of the function (sin) and its input argument x.
类别
在 帮助中心 和 File Exchange 中查找有关 Mathematics 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
