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import numpy as np
def letter(x):
# I have copied this data straight from
# https://github.com/asgeirbirkis/chebfun/blob/master/scribble.m
__letters = {
"A": [0, 0.4 + 1j, 0.8, 0.6 + 0.5j, 0.2 + 0.5j],
"B": [0, 1j, 0.8 + 0.9j, 0.8 + 0.6j, 0.5j, 0.8 + 0.4j, 0.8 + 0.1j, 0],
"C": [0.8 + 1j, 0.8j, 0.2j, 0.8],
"D": [0, 0.8 + 0.1j, 0.8 + 0.9j, 1j, 0],
"E": [0.8 + 1j, 1j, 0.5j, 0.5j + 0.7, 0.5j, 0, 0.8],
"F": [0.8 + 1j, 1j, 0.5j, 0.5j + 0.7, 0.5j, 0],
"G": [0.8 + 1j, 0.8j, 0.2j, 0.6, 0.6 + 0.5j, 0.4 + 0.5j, 0.8 + 0.5j],
"H": [0, 1j, 0.5j, 0.5j + 0.8, 0.8 + 1j, 0.8],
"I": [0, 0.8, 0.4, 0.4 + 1j, 1j, 0.8 + 1j],
"J": [0, 0.4, 0.4 + 1j, 1j, 0.8 + 1j],
"K": [0, 1j, 0.5j, 0.8 + 1j, 0.5j, 0.8],
"L": [1j, 0, 0.8],
"M": [0, 0.1 + 1j, 0.4, 0.7 + 1j, 0.8],
"N": [0, 1j, 0.8, 0.8 + 1j],
"O": [0, 1j, 0.8 + 1j, 0.8, 0],
"Q": [0, 1j, 0.8 + 1j, 0.8, 0.6 + 0.2j, 0.9 - 0.1j, 0.8, 0],
"P": [0, 1j, 0.8 + 1j, 0.8 + 0.5j, 0.5j],
"R": [0, 1j, 0.8 + 1j, 0.8 + 0.6j, 0.5j, 0.8],
"S": [0.8 + 1j, 0.9j, 0.6j, 0.8 + 0.4j, 0.8 + 0.1j, 0],
"T": [0.4, 0.4 + 1j, 1j, 0.8 + 1j],
"U": [1j, 0.1, 0.7, 0.8 + 1j],
"V": [1j, 0.4, 0.8 + 1j],
"W": [1j, 0.2, 0.4 + 1j, 0.6, 0.8 + 1j],
"X": [1j, 0.8, 0.4 + 0.5j, 0.8 + 1j, 0],
"Y": [1j, 0.4 + 0.5j, 0.8 + 1j, 0.4 + 0.5j, 0.4],
"Z": [1j, 0.8 + 1j, 0, 0.8],
" ": [],
}
return np.array(__letters[x.upper()])
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