Arithmetic

Alongside the standard operators, Vesper includes a few aimed squarely at numerical work:

Operator	Name	Example	Result
+	Addition	let a=5+2;	7
-	Subtraction	let b =5-2	3
*	Multiplication	let c=5*2	10
/	division	let d= 5.2/2	2.5
%	Reminder	let e=5%2	1
//	Floor division	let f=5//2	2
**	Exponentiation	let g=5\*\*2	25

let a = 10 % 3;
let b = 10 // 3;
let c = 2 ** 10;
let d = 2 ** -2;

Floor division follows mathematical floor semantics rather than truncation:

-7 // 2 = -4

and the corresponding remainder is:

-7 % 2 = 1

Exponentiation is right-associative, so:

2 ** 3 ** 2

is interpreted as 2 ** (3 ** 2).

Unary operators

Vesper supports unary + and - for numeric values:

let x = -42;
let y = +10;
let z = -3.14;

Unary minus respects mathematical precedence around exponentiation:

-2 ** 2

is interpreted as -(2 ** 2), while:

(-2) ** 2

is 4.

Comparison

Operator	Name	Example	Result
==	Equal to	5 == 5	true
!=	Not equal to	5 != 3	true
<	Less than	3 < 5	true
<=	Less than or equal to	3 <= 3	true
>	Greater than	5 > 3	true
>=	Greater than or equal to	5 >= 5	true

Strings & escape sequences

Strings support escape sequences:

let message = "Hello\nWorld";
let path = "C:\\Users\\Vesper";

More escape sequences are being added as the language develops.

Print

print accepts multiple expressions in a single call, evaluating and writing each in sequence:

print("Value: ", 42, "\n");

It does not automatically append a newline — produce one explicitly with \n when you want it:

print("Hello\n");
print("World\n");

Comments

Line comments use #:

# This is a comment

let x = 10; # Inline comment

Block comments are supported by the language tooling using a doubled ##:

##
This is a block comment.
##

# was chosen deliberately so it doesn’t collide with Vesper’s floor-division operator, //.