L2 = underroot sigma n i = 1 (ai - bi)2 Assume a and b are two (20, 20) numpy arrays. The L2-distance (defined above) between two equal dimension arrays can be calculated in python as follows:
def 12_dist(a, b):
result ((a - b) * (a - b)). sum)
result = result ** 0.5
return result
Which of the following expressions using this function will give an error?
a. 12_dist(np. reshape(a, (20 * 20)), np. reshape(b, (20 * 20, 1)))
b. 12_dist(a, b)
c. 12_dist(np. reshape(a, (20 * 20)), np. reshape(b, (20 * 20)))
d. 12_dist(a. T, 5.1)
Given the 6x6 NumPy array r shown below, which of the following options would slice the shaded elements?
0 1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
26 27 28 29 30
31 32 33 34 35
a. r[2:3,2:3]
b. r[[2,4],[2,4]]
c. r[[2,3],[2,3]]
d. r[2:4, 2:4)
Which of the following is the correct regular expression to extract all the phone numbers from the following chunk of text?
Office of Research Administration: (734) 647-6333 | 4325 North Quad
Office of Budget and Financial Administration: (734) 647-8844 | 309 Maynard, Suite 205
Health Informatics Program: (734) 763-2285 | 333 Maynard, Suite 500
Office of the Dean: (734) 647-3576 | 4322 North Quad
UMSI Engagement Center: (734) 763-1251 | 777 North University
Faculty Adminstrative Support Staff: (734) 764-9376 | 4322 North Quad'
a. \d{3}\s\d{3}[-]\d{4}
b. [C]\d{3}[)]\s\d{3}[-] \d{4}
c. \d{3}[ - ]\d{3}[ - ] \d{4}
d. [(]\d{3}[)]\d{3}[-]\d{4}

Read this excerpt from helen keller’s autobiography, the story of my life. have you ever been at sea in a dense fog, when it seemed as if a tangible white darkness shut you in, and the great ship, tense and anxious, groped her way toward the shore with plummet and sounding-line, and you waited with beating heart for something to happen? i was like that ship before my education began, only i was without compass or sounding-line, and had no way of knowing how near the harbour was. "light! give me light! " was the wordless cry of my soul, and the light of love shone on me in that very hour. . the morning after my teacher came she led me into her room and gave me a doll. the little blind children at the perkins institution had sent it and laura bridgman had dressed it; but i did not know this until afterward. when i had played with it a little while, miss sullivan slowly spelled into my hand the word "d-o-l-l." i was at once interested in this finger play and tried to imitate it. when i finally succeeded in making the letters correctly i was flushed with childish pleasure and pride. running downstairs to my mother i held up my hand and made the letters for doll. i did not know that i was spelling a word or even that words existed; i was simply making my fingers go in monkey-like imitation. in the days that followed i learned to spell in this uncomprehending way a great many words, among them pin, hat, cup and a few verbs like sit, stand and walk. based on this excerpt, which words best describe helen keller?