为什么会弹出这个错误？
我想知道为什么缺少输入参数
我把x的表达式写错了吗？
X的表达式为

我尝试修改x的表达式和flot的范围，但我做不到。

my_function=@(x)my_function((-x.^2)-(5.*x)-3+(exp.^x))

my_function =

  function_handle with value:

    @(x)my_function((-x.^2)-(5.*x)-3+(exp.^x))

>> fplot(my_function,[-5:5])
Error using fplot
Invalid parameter '-5 -4 -...'.
 
>> fplot(my_function,[-5 5])
Warning: Error updating FunctionLine.

 The following error was reported evaluating the
 function in FunctionLine update: Not enough input
 arguments.
 
>> fplot(my_function,[-5,5])
Warning: Error updating FunctionLine.

 The following error was reported evaluating the
 function in FunctionLine update: Not enough input
 arguments.
 
>> fplot(my_function,[-5,5,1])
Error using fplot
Invalid parameter '-5  5  1'.
 
>> fplot(my_function,(-5,5))
 fplot(my_function,(-5,5))
                      ↑
Invalid expression. When calling a function or indexing
a variable, use parentheses. Otherwise, check for
mismatched delimiters.
 
>> fplot(my_function,[-5,5])
Warning: Error updating FunctionLine.

 The following error was reported evaluating the
 function in FunctionLine update: Not enough input
 arguments.

The issues to be addressed are:

Use the fplot function to plot the function over the range of x from -5 to +5.