The Algebra of Vectors
Vectors can be made to make new vectors much in the same way that numbers can.
To add two vectors together in R, simply use the + command.
Vectors can also be scaled via multiplication by a real number (or scalar), using the * command.
Multiplication of two vectors is a trickier topic theoretically, but in R, component-wise multiplication of two vectors is legal and accomplished using the * command.
The vectors x, y, and z have been loaded for you.
Questo esercizio fa parte del corso
Linear Algebra for Data Science in R
Istruzioni dell'esercizio
Add the vector
xto the vectoryand print the result.Multiply the vector
zby the scalar2.Multiply the vectors
xandyto each other, component-wise, and print the result.Try to add the vector
xto the vectorz. What happens?
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Add x to y and print
print(x ___ y)
# Multiply z by 2 and print
print(2 ___ z)
# Multiply x and y by each other and print
print(___ ___ y)
# Add x to z, if possible, and print
print(x + ___)