45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
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from flask import Flask, jsonify, request
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import time
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from flask_cors import CORS
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from decimal import Decimal, getcontext
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app = Flask(__name__)
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CORS(app)
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def calculate_pi(n):
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getcontext().prec = n * 14
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pi = Decimal(0)
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k = Decimal(0)
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x = Decimal(1)
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sixteen = Decimal(16)
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for i in range(n):
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pi += (Decimal(4) / (8*k + 1) -
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Decimal(2) / (8*k + 4) -
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Decimal(1) / (8*k + 5) -
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Decimal(1) / (8*k + 6)) * x
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k += 1
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x /= 16
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return pi
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@app.route('/pi')
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def get_pi():
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try:
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precision = int(request.args.get('precision', 10))
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start_time = time.time()
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pi = calculate_pi(precision)
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duration = (time.time() - start_time)*1000
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return jsonify({
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'pi': f"{pi:.{precision}f}",
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'time': f"{duration:.6f}ms",
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'language': 'Python'
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})
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except ValueError:
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return jsonify({'error': 'Invalid precision parameter'}), 400
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if __name__ == '__main__':
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print("Python server starting on port 8082...")
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app.run(port=8082)
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