Create ArithmeticProgression.ts

Maths/ArithmeticProgression.ts

@@ -0,0 +1,16 @@
+console.log('Arithmetic Progression for non-constant common difference')
+
+function calculateTerm(n, differences): number {
+    const a = differences.shift(); // First term
+
+    if (n === 1) {
+      return a; // Return the first term if n = 1
+    }
+    const sumDifferences = differences.slice(0, n - 1).reduce((sum, d) => sum + d, 0); // Sum up differences up to (n-1)
+    return a + sumDifferences;
+  }
+  const differences = [2, 5, 3, 1, 11, 7, 6, 4]; // Differences
+  const N_th = 8; // Term to calculate
+
+  const result = calculateTerm(N_th, differences);
+  console.log(`The ${N_th}th term is ${result}`);