On Saturday, December 14, 2024 at 4:46:59 AM UTC-6 Edward K. Ream wrote:
On second thought, the title of this thread is misguided.
I have spent the last week coming up to speed on all the fabulous math
tools and websites out there.
This morning I finally got around to writing my first matplotlib program.
See the Postscript.
This exercise has been a ton of fun. execute-script just works!
For me, Leo *is *the perfect platform for running Matplotlib programs.
The more I use Jupyter, the less I like it, so the title of this thread
seems about right :-)
Edward
P.S. Here is my first plot:
import matplotlib.pyplot as plt
import numpy as np
# Use a monospace font for
plt.rcParams["font.family"] = 'DejaVu Sans Mono'
a, b = [], []
for x in range(-50,50):
y=x**2
a.append(x)
b.append(y)
fig= plt.figure()
fig.suptitle('Parabola with Tangents')
axes=fig.add_subplot()
axes.plot(a,b)
# Cut the tangent lines off at y = 0
plt.ylim(bottom=0)
color = iter(plt.cm.rainbow(np.linspace(0, 1, 6)))
for i, x in enumerate(range(-50, 60, 20)):
if x == 0:
continue
y = x**2
slope = 2 * x
x_y_s = f"({x:3}, {y})"
label = f"{x_y_s:<11} slope: {slope:4}, x-intercept: {x - y/slope:>5}"
plt.axline((x, y), slope=slope, label=label, c=next(color))
axes.legend()
fig.canvas.manager.window.move(50,50) # Move the window.
plt.show()
EKR
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