Introduction to Numpy — Formula Sheet
CBSE · Class 11 · Informatics Practices
6 formulas from Introduction to Numpy (CBSE Class 11 Informatics Practices) on one page, grouped by topic. Covers NumPy and Arrays, Creating NumPy Arrays.
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Formulas and Key Relations
Array Basics
Total elements in marks array: 4 x 3 = 12
itemsize for int32: 32/8 = 4 bytes
itemsize for int64/float64: 64/8 = 8 bytes
size = product of the elements of shape
Creating NumPy Arrays
array1 = np.array([10,20,30]) is an example of a 1-D array.
Operations on Arrays
Example arrays used for arithmetic are array1 = np.array([[3,6],[4,2]]) and array2 = np.array([[10,20],[15,12]]).
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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