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import gradio as gr
import math
import re
history = []
def calculate(expression):
try:
if not re.match(r'^[\d\s\+\-\*/\(\)\^\.\w]+$', expression):
raise ValueError("Invalid characters in expression")
expression = expression.replace('^', '**')
safe_dict = {
'sin': math.sin, 'cos': math.cos, 'tan': math.tan,
'log': math.log10, 'ln': math.log, 'sqrt': math.sqrt,
'pi': math.pi, 'e': math.e
}
result = eval(expression, {"__builtins__": None}, safe_dict)
result_str = f"{result:.8f}".rstrip('0').rstrip('.')
global history
history.append(f"{expression} = {result_str}")
history = history[-5:]
return result_str, "\n".join(reversed(history))
except Exception as e:
return f"Error: {str(e)}", "\n".join(reversed(history))
def update_expression(expression, value):
if expression == "0" and value not in ['.', '(', ')']:
return value
if value in ['sin', 'cos', 'tan', 'log', 'ln', 'sqrt']:
return expression + value + '('
return expression + value
def backspace(expression):
return expression[:-1] if len(expression) > 0 else "0"
def clear(expression):
return "0"
css = """
.calculator-display { font-family: 'Digital-7', 'Courier New', monospace; font-size: 24px; }
.calculator-button { font-family: 'Arial', sans-serif; font-size: 18px; }
.number-button { background-color: #e0e0e0; }
.basic-op-button { background-color: #ffffff; }
.advanced-op-button { background-color: #ffa500; }
.calculator-box { border: 1px solid #ccc; padding: 10px; margin: 5px; border-radius: 5px; }
"""
with gr.Blocks(css=css) as iface:
gr.Markdown("# Scientific Calculator")
with gr.Row():
history_display = gr.Textbox(label="History (Last 5 Calculations)", lines=5)
with gr.Row():
display = gr.Textbox(value="0", label="Display", elem_classes=["calculator-display"])
with gr.Row():
with gr.Column(scale=3):
with gr.Column(elem_classes=["calculator-box"]):
# Number pad
for i in range(3):
with gr.Row():
for j in range(3):
num = 7 - 3*i + j
globals()[f"btn_{num}"] = gr.Button(str(num), elem_classes=["calculator-button", "number-button"])
with gr.Row():
btn_0 = gr.Button("0", elem_classes=["calculator-button", "number-button"])
btn_dot = gr.Button(".", elem_classes=["calculator-button", "number-button"])
btn_equals = gr.Button("=", elem_classes=["calculator-button", "basic-op-button"])
with gr.Column(scale=2):
with gr.Column(elem_classes=["calculator-box"]):
# Basic operations
for op, symbol in [("add", "+"), ("sub", "-"), ("mul", "*"), ("div", "/")]:
globals()[f"btn_{op}"] = gr.Button(symbol, elem_classes=["calculator-button", "basic-op-button"])
btn_left_paren = gr.Button("(", elem_classes=["calculator-button", "basic-op-button"])
btn_right_paren = gr.Button(")", elem_classes=["calculator-button", "basic-op-button"])
btn_clear = gr.Button("C", elem_classes=["calculator-button", "basic-op-button"])
btn_backspace = gr.Button("⌫", elem_classes=["calculator-button", "basic-op-button"])
with gr.Column(scale=2):
with gr.Column(elem_classes=["calculator-box"]):
# Advanced operations
for func in ["sin", "cos", "tan", "log", "ln", "sqrt"]:
globals()[f"btn_{func}"] = gr.Button(func, elem_classes=["calculator-button", "advanced-op-button"])
btn_power = gr.Button("^", elem_classes=["calculator-button", "advanced-op-button"])
btn_pi = gr.Button("π", elem_classes=["calculator-button", "advanced-op-button"])
btn_e = gr.Button("e", elem_classes=["calculator-button", "advanced-op-button"])
# Define button click events
for btn in [btn_0, btn_1, btn_2, btn_3, btn_4, btn_5, btn_6, btn_7, btn_8, btn_9,
btn_dot, btn_add, btn_sub, btn_mul, btn_div, btn_left_paren, btn_right_paren,
btn_power, btn_sin, btn_cos, btn_tan, btn_log, btn_ln, btn_sqrt, btn_pi, btn_e]:
btn.click(update_expression, inputs=[display, btn], outputs=display)
btn_equals.click(calculate, inputs=display, outputs=[display, history_display])
btn_clear.click(clear, inputs=display, outputs=display)
btn_backspace.click(backspace, inputs=display, outputs=display)
iface.launch() |