Initial commit: Pi calculation benchmark with 34 languages

- Added implementations for: bash, brainfuck, c, cpp, crystal, csharp, d, dart, elixir, erlang, fortran, go, haskell, java, javascript, julia, kotlin, objective-c, scala, typescript, lua, nim, odin, perl, php, python, r, ruby, rust, swift, zig, assembly, vimscript, wolfram
- All implementations use Machin's formula: π/4 = 4*arctan(1/5) - arctan(1/239)
- Build system with ./build.sh, test system with ./test.sh
- Performance testing with ./run_all.sh
- Comprehensive README.md explaining performance differences
- Test framework verifies correctness against known π values

scala/cmd/build.sh

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+#!/bin/bash
+
+# Scala Build Script
+
+SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$SCRIPT_DIR"
+
+echo "=== Scala Build ==="
+echo ""
+
+# Scala 3 använder scala run för att köra program
+# Skapa wrapper script
+
+mkdir -p bin
+cat > bin/print_hej << 'EOF'
+#!/bin/bash
+SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$SCRIPT_DIR"
+scala run src/print_hej.scala -- "$@"
+EOF
+chmod +x bin/print_hej
+
+echo "✓ Ingen kompilering behövs för Scala"
+echo "  Använder scala run"
+echo ""
+echo "Wrapper script skapad: bin/print_hej"
+echo ""
+echo "För att köra:"
+echo "  ./bin/print_hej [decimaler]"

scala/cmd/test.sh

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+#!/bin/bash
+
+# Scala Test Script
+
+SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$SCRIPT_DIR"
+
+echo "=== Scala Test ==="
+echo ""
+
+# Testa pi-beräkning med olika antal decimaler
+for decimals in 1 2 5 10 100; do
+  result=$(./bin/print_hej $decimals 2>/dev/null)
+  if [ $? -eq 0 ]; then
+    echo "✓ $decimals decimaler: $result"
+  else
+    echo "✗ $decimals decimaler misslyckades"
+  fi
+done

scala/src/.bsp/scala.json

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+{
+  "name": "scala",
+  "argv": [
+    "/opt/homebrew/Cellar/scala-cli/1.13.0/bin/scala-cli",
+    "--cli-default-scala-version",
+    "3.8.3",
+    "--repository",
+    "file:///opt/homebrew/Cellar/scala/3.8.3/libexec/maven2",
+    "--prog-name",
+    "scala",
+    "--skip-cli-updates",
+    "bsp",
+    "--json-options",
+    "/Users/einand/Code/test/scala/src/.scala-build/ide-options-v2.json",
+    "--json-launcher-options",
+    "/Users/einand/Code/test/scala/src/.scala-build/ide-launcher-options.json",
+    "--envs-file",
+    "/Users/einand/Code/test/scala/src/.scala-build/ide-envs.json",
+    "/Users/einand/Code/test/scala/src/print_hej.scala"
+  ],
+  "version": "1.13.0",
+  "bspVersion": "2.1.1",
+  "languages": [
+    "scala",
+    "java"
+  ]
+}

scala/src/.scala-build/.bloop/src_fc1c13bc20-63e7ded0de.json

@@ -0,0 +1 @@
+{"version":"1.4.0","project":{"name":"src_fc1c13bc20-63e7ded0de","directory":"/Users/einand/Code/test/scala/src/.scala-build","workspaceDir":"/Users/einand/Code/test/scala/src","sources":["/Users/einand/Code/test/scala/src/print_hej.scala"],"dependencies":[],"classpath":["/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala3-library_3/3.8.3/scala3-library_3-3.8.3.jar","/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala-library/3.8.3/scala-library-3.8.3.jar"],"out":"/Users/einand/Code/test/scala/src/.scala-build/.bloop/src_fc1c13bc20-63e7ded0de","classesDir":"/Users/einand/Code/test/scala/src/.scala-build/src_fc1c13bc20-63e7ded0de/classes/main","scala":{"organization":"org.scala-lang","name":"scala-compiler","version":"3.8.3","options":["-sourceroot","/Users/einand/Code/test/scala/src"],"jars":["/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala3-compiler_3/3.8.3/scala3-compiler_3-3.8.3.jar","/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala3-interfaces/3.8.3/scala3-interfaces-3.8.3.jar","/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/tasty-core_3/3.8.3/tasty-core_3-3.8.3.jar","/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala3-library_3/3.8.3/scala3-library_3-3.8.3.jar","/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/modules/scala-asm/9.9.0-scala-1/scala-asm-9.9.0-scala-1.jar","/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-sbt/compiler-interface/1.10.7/compiler-interface-1.10.7.jar","/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala-library/3.8.3/scala-library-3.8.3.jar","/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-sbt/util-interface/1.10.7/util-interface-1.10.7.jar"],"bridgeJars":["/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala3-sbt-bridge/3.8.3/scala3-sbt-bridge-3.8.3.jar"]},"java":{"options":[]},"platform":{"name":"jvm","config":{"home":"/opt/homebrew/opt/openjdk@17/libexec/openjdk.jdk/Contents/Home","options":[]},"mainClass":[]},"resolution":{"modules":[{"organization":"org.scala-lang","name":"scala3-library_3","version":"3.8.3","artifacts":[{"name":"scala3-library_3","path":"/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala3-library_3/3.8.3/scala3-library_3-3.8.3.jar"}]},{"organization":"org.scala-lang","name":"scala-library","version":"3.8.3","artifacts":[{"name":"scala-library","path":"/opt/homebrew/Cellar/scala/3.8.3/libexec/maven2/org/scala-lang/scala-library/3.8.3/scala-library-3.8.3.jar"}]}]},"tags":["library"]}}

scala/src/.scala-build/ide-envs.json

@@ -0,0 +1 @@
+{"JAVA_HOME":"/opt/homebrew/opt/openjdk@17/libexec/openjdk.jdk/Contents/Home","SHELL":"/opt/homebrew/bin/fish","PATH":"/Users/einand/Library/Application Support/Code/User/globalStorage/github.copilot-chat/debugCommand:/Users/einand/Library/Application Support/Code/User/globalStorage/github.copilot-chat/copilotCli:/opt/homebrew/opt/openjdk/bin:/Users/einand/.opencode/bin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/pkg/env/global/bin:/Library/Apple/usr/bin:/usr/local/share/dotnet:~/.dotnet/tools:/opt/homebrew/bin:/Users/einand/Library/Application Support/Code/User/globalStorage/github.copilot-chat/debugCommand:/Users/einand/Library/Application Support/Code/User/globalStorage/github.copilot-chat/copilotCli:/Users/einand/.cargo/bin:/Users/einand/.vscode/extensions/ms-python.debugpy-2025.18.0-darwin-arm64/bundled/scripts/noConfigScripts"}

scala/src/.scala-build/ide-inputs.json

@@ -0,0 +1 @@
+{"args":["/Users/einand/Code/test/scala/src/print_hej.scala"]}

scala/src/.scala-build/ide-launcher-options.json

@@ -0,0 +1 @@
+{"scalaRunner":{"cliUserScalaVersion":"3.8.3","cliPredefinedRepository":["file:///opt/homebrew/Cellar/scala/3.8.3/libexec/maven2"],"progName":"scala","skipCliUpdates":true}}

scala/src/.scala-build/ide-options-v2.json

@@ -0,0 +1 @@
+{}

scala/src/print_hej.scala

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+// Pi calculation using Machin's formula
+// pi/4 = 4*arctan(1/5) - arctan(1/239)
+
+import java.math.BigInteger
+import scala.annotation.tailrec
+
+object PiCalculator {
+  // Calculate arctan(1/x) using Taylor series with arbitrary precision
+  // arctan(1/x) = 1/x - 1/(3*x^3) + 1/(5*x^5) - ...
+  def arctan(x: Int, decimals: Int): BigInteger = {
+    val scale = BigInteger.TEN.pow(decimals + 10)
+    val xBig = BigInteger.valueOf(x)
+    val xSquared = xBig.multiply(xBig)
+    
+    @tailrec
+    def compute(term: BigInteger, result: BigInteger, n: Int): BigInteger = {
+      if (term.equals(BigInteger.ZERO)) {
+        result
+      } else {
+        // Add current term with sign
+        val newResult = if (n % 2 == 0) result.add(term) else result.subtract(term)
+        // Next term: term / (x² * (2n+3) / (2n+1))
+        // Simplified: term * (2n+1) / ((2n+3) * x²)
+        val numerator = term.multiply(BigInteger.valueOf(2L * n + 1))
+        val denominator = BigInteger.valueOf(2L * n + 3).multiply(xSquared)
+        val newTerm = numerator.divide(denominator)
+        compute(newTerm, newResult, n + 1)
+      }
+    }
+    
+    val initialTerm = scale.divide(xBig)
+    compute(initialTerm, BigInteger.ZERO, 0)
+  }
+  
+  // Calculate pi using Machin's formula
+  def calculatePi(decimals: Int): String = {
+    val actualDecimals = if (decimals < 1) 100 else decimals
+    
+    // Machin's formula: pi/4 = 4*arctan(1/5) - arctan(1/239)
+    // pi = 16*arctan(1/5) - 4*arctan(1/239)
+    val arctan5 = arctan(5, actualDecimals)
+    val arctan239 = arctan(239, actualDecimals)
+    
+    // pi = 16*arctan(1/5) - 4*arctan(1/239)
+    val pi = arctan5.multiply(BigInteger.valueOf(16)).subtract(arctan239.multiply(BigInteger.valueOf(4)))
+    
+    // Format output
+    val piStr = pi.toString()
+    
+    if (actualDecimals == 0) {
+      "3"
+    } else {
+      // Pad with zeros if needed
+      val padded = if (piStr.length < actualDecimals + 1) {
+        val zerosNeeded = actualDecimals + 1 - piStr.length
+        "0" * zerosNeeded + piStr
+      } else {
+        piStr
+      }
+      
+      // Insert decimal point
+      val beforeDecimal = padded.substring(0, 1)
+      val afterDecimal = padded.substring(1)
+      
+      // Pad or truncate to desired length
+      val finalAfterDecimal = if (afterDecimal.length < actualDecimals) {
+        afterDecimal + "0" * (actualDecimals - afterDecimal.length)
+      } else {
+        afterDecimal.substring(0, actualDecimals)
+      }
+      
+      s"$beforeDecimal.$finalAfterDecimal"
+    }
+  }
+  
+  def main(args: Array[String]): Unit = {
+    val decimals = if (args.length > 0) {
+      try {
+        val d = args(0).toInt
+        if (d < 1) 100 else d
+      } catch {
+        case _: NumberFormatException => 100
+      }
+    } else {
+      100
+    }
+    
+    println(calculatePi(decimals))
+  }
+}