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| import sys
|
| from matplotlib import pyplot as plt
| from numint.riemann_sum import numint_epsilon
| from numint.input_parser import parse_function, parse_value
|
|
| def plot_cli(function_expr:str, start:str, end:str, epsilon: str):
| f = parse_function(function_expr)
|
| (a, b) = (parse_value(start), parse_value(end))
| eps = parse_value(epsilon)
| (x, y, l, r, n) = numint_epsilon(f, a, b, eps)
| fig, ax = plt.subplots()
| ax.stairs(y[1:], x, baseline=0, fill=True, alpha=1,label=function_expr)
| ax.stairs(y[0:-1], x, baseline=0, fill=True, color="orange", alpha=0.5, label=function_expr)
| #ax.step(x, y, label=function_expr)
| #ax.step(x, y, where="post", label=function_expr)
|
| ax.plot(x, y, color="black")
|
| plt.show()
| pass
|
|
| def main():
| function_expr = sys.argv[1]
| start = sys.argv[2]
| end = sys.argv[3]
| eps = sys.argv[4]
| plot_cli(function_expr, start, end, eps)
|
|
| if __name__ == "__main__":
| main()
|
|
