To select all records with specific numbers, use the FIND_IN_SET() in MySQL.Let us create a table −Examplemysql> create table demo73    -> (    -> interest_id varchar(100),    -> interest_name varchar(100)    -> ); Query OK, 0 rows affected (1.48Insert some records into the table with the help of insert ... Read More

To convert, use str_to_date() in MySQLLet us create a table and add date records −Examplemysql> create table demo72    -> (    -> due_date varchar(40)    -> ); Query OK, 0 rows affected (2.96 sec)Insert some records into the table with the help of insert command −Examplemysql> insert into demo72 ... Read More

SciPy library can be used to perform complex scientific computations at speed, with high efficiency. Nelder-Mead algorithm is also known as simple search algorithm.It is considered to be one of the best algorithms that can be used to solve parameter estimation problems, and statistical problems. Relevant to use this algorithm ... Read More

Finding the minimum of a scalar function is an optimization problem. Optimization problems help improve the quality of the solution, thereby yielding better results with higher performances. Optimization problems are also used for curve fitting, root fitting, and so on.Let us see an example −Exampleimport matplotlib.pyplot as plt from scipy ... Read More

Discrete Fourier Transform, or DFT is a mathematical technique that helps in the conversion of spatial data into frequency data.Fast Fourier Transformation, or FTT is an algorithm that has been designed to compute the Discrete Fourier Transformation of spatial data.The spatial data is usually in the form of a multidimensional ... Read More

Eigen vectors and Eigen values find their uses in many situations. The word ‘Eigen’ in German means ‘own’ or ‘typical’. An Eigen vector is also known as a ‘characteristic vector’. Suppose we need to perform some transformation on a dataset but the given condition is that the direction of data ... Read More

We have previously used slicing with the help of operator ‘:’, which is used in the case of extracting top ‘n’ elements from series structure. It helps assign a range to the series elements that will later be displayed.Let us see an example −Example Live Demoimport pandas as pd my_data = ... Read More

The ability to index elements and access them using their positional index values serves a great purpose when we need to access specific values.Let us see how series data structure can be index to get value from a specific index.Example Live Demoimport pandas as pd my_data = [34, 56, 78, 90, ... Read More

Let us understand how series data structure can be created using dictionary, as well as specifying the index values, i.e., customized index values to the series.Dictionary is a Python data structure that has a mapping kind of structure- a key, value pair.Example Live Demoimport pandas as pd my_data = {'ab' : ... Read More

When it is required to find the cube root of values, a function present in SciPy library can be used.Syntax of ‘cbrt’ functionscipy.special.cbrt(x)The ‘x’ is the parameter that is passed to the function ‘cbrt’ that is present in ‘special’ class of ‘SciPy’ library. Here’s an example −Example Live Demofrom scipy.special import ... Read More