np common errors.T= ≥ ≤ > <+-keepdimdtypeindex +- 1axis*seed()numpy operationsnp.outer()np.matmul()np.multiply()np.dot()np.inner()numpy.sumnp.exp()numpy.sqrtnp.conjnp.kron()np.bincountnp.nonzeronp.wherenp.randomnp.reshape()np.ravelnp.testing axis 0 - vstackaxis 1 - hstackaxis 2 - dstackaxis - stacknumpy shape operationsnumpy.dstacknumpy.padnumpy.stack()numpy.reshape()