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Pi Examples

// Pi Programming Examples

println "Hello, World!"

// Variable and Arithmetic example in Pi

x, y := 10, 5

result := x + y

println("Sum:", result)

result = x - y

printf("Difference: %s%n", result)

result = x * y

// Using StringTemplates

println("Product: \{result}")

println("Quotient: \{x / y}")

// Conditional Statement example in Pi

num := 10

if num > 0 {

println("Positive number")

} else if num < 0 {

println("Negative number")

} else {

println("Zero")

}

import pi.lang.unit.Force
import pi.lang.unit.Distance
import pi.lang.unit.Mass
import pi.lang.unit.Radian

equationsExample :: function() {

/* Declare π and the gravitational G constant locally */

π :: Radian::PI // defined to 156 decimal places using f512

G :: Force::G

quadraticEq1 :: equation(a, b, c, x: f32) -> (bool, $1, $2)

(ax²) + (bx) + c == 0

quadraticEq2 :: equation(a, b, c: f32) -> (x1, x2: f32)

x = -b±√(b² - 4ac) ÷ 2a

newton2nd1 :: equation(m, a: Mass) -> (F: Force) do F = ma

newton2nd2 :: equation(m, M: Mass, r: Distance) -> (F: Force) {

GmM

F = /---------/

r²

// Block equation compiled to: F = G * m * M / r²

}

When writing equation blocks, all variables are single letter and combinations of 'ma' are compiled to 'm * a'. Multi-line equations are built on the length of the fraction bar. Also note, that unicode characters for power-of-2 and square root are used interchangly with their more typical ASCII counter parts.

// For Loop example in Pi

for i := 1; i <= 5; i++ {

println("Iteration:", i)

}

num1 := input("Enter first number: ");

num2 := input("Enter second number: ");

sum := num1 + num2;

print("The sum is: " + sum);

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