Problem with exp() function

I wonder why this function exp(1), which supposedly has to give you the Euler's constant, gives me the number 1. Furthermore, whenever I put a number bigger than 1, e.g., 3, it says that the index cannot exceed the number 1.

That is, the code is the following:

exp(1)

ans = 2.7183

But look at the following image:

It supposed to give me an approximation of Euler's constant.

Code Used:

exp(1)

>> ans = 1

exp(6)

Index exceeds the number of array elements. Index must not exceed 1.

Error in eulers_contant (line 2)

exp(6)

>>

I dont know what to do now.

[Stephen23]

"Problem with exp() function"

There is no problem with the EXP function.

"it says that the index cannot exceed the number 1."

You defined a scalar variable named EXP:

What do you expect to happen, when you try to access the 6th element of an array that only has one element?

Answer 1

[David Hill]

Make sure your clear your workspace and do not have any function names 'exp'

clear
format long
exp(1)

ans = 
   2.718281828459045

exp(6)

ans = 
     4.034287934927351e+02

[David Hill]

You should not name variables as function names.

[Walter Roberson]

Right, the image towards the left shows that the user had a variable named exp with a value of 1 as if they had coded

exp=(1)

instead of

exp(1)