# A few numeric functions, in real Viv syntax.

def area(r) {
    return 3.14159 * r * r
}

def twice(n) {
    return n + n
}

# calls another function; unary minus and parentheses
def shifted(x) {
    return area(x) - -(1.0)
}

print(area(2.0))
print(twice(21.0))
print(shifted(2.0))

# SPDX-License-Identifier: MIT OR Apache-2.0
# SPDX-FileCopyrightText: 2026 The Viv authors