Server Side Programming Articles - Page 534 of 2650

Strings.Index is a built-in function in Golang that returns the index of the first instance of a substring in a given string. If the substring is not available in the given string, then it returns -1.SyntaxThe syntax of Index() is as follows −func Index(s, substring string) intWhere, s – Original given stringsubstring – It is the string whose Index value we need to findExample 1Let us consider the following example −package main import (    "fmt"    "strings" ) // Main function func main() {        // Initializing the Strings    x := "Learn Golang on Tutorialspoint" ... Read More

Risk AcceptanceRisk acceptance is also known as risk retention. It is simply accepting the recognized risk without taking any measures to avoid loss or the probability of the risk happening. It includes a decision by management to accept a given risk without more mitigation or transfer, for a period of time.This appears in two classes of circumstances. For risks that are too low to bother protecting against or for which insurance and due diligence are enough, risk is accepted. For risks that are to be mitigated but where mitigation cannot be completed instantaneously or for which rapid mitigation is too ... Read More

ReplaceAll() function in Golang replaces all the occurrences of a given substring with a new value. In contrast, Replace() function is used to replace only some characters in a string with a new value. It replaces only a specified "n" occurrences of the substring.SyntaxThe syntax of ReplaceAll() is as follows −func ReplaceAll(s, old, new string) stringWhere, s is the given stringold is the string which we want to replace, andnew is string which will replace the old string.Example 1Let us consider the following example −package main import (    "fmt"    "strings" ) func main() {    // Initializing ... Read More

The HasSuffix() function of string class in Golang is used to check whether a given string ends with a specified Suffix string or not. It returns True if the given string ends with the specified Suffix string; otherwise it returns False.HasSuffix() and HasPrefix() check if a string ends or starts with a particular set of characters, respectively.Syntaxfunc HasSuffix(s, prefix string) boolWhere x is the given string. It returns a Boolean value.Example 1In this example, we are going to use HasSuffix() with an if condition to check wheter two defined string variables are ending with the same set of characters or not.package main import ... Read More

The HasPrefix() function of string class in Golang is used to check whether a given string begins with a specified Prefix string or not. It returns True if the given string begins with the specified prefix string; otherwise it returns False.Syntaxfunc HasPrefix(s, prefix string) boolWhere x is the given string. It returns a Boolean value.ExampleIn this example, we are going to use HasPrefix() along with an if condition to check wheter the two defined variables are starting with the same Prefix string or not.package main import (    "fmt"    "strings" ) func main() {        // Initializing ... Read More

To generate a pseudo Vandermonde matrix of the Hermite_e polynomial and x, y, z sample points, use the hermite_e.hermevander3d() in Python Numpy. The method returns the pseudo- Vandermonde matrix. The parameter, x, y, z are arrays of point coordinates, all of the same shape. The dtypes will be converted to either float64 or complex128 depending on whether any of the elements are complex. Scalars are converted to 1-D arrays. The parameter, deg is the list of maximum degrees of the form [x_deg, y_deg, z_deg].StepsAt first, import the required library −import numpy as np from numpy.polynomial import hermite_e as HCreate arrays ... Read More

To integrate a Hermite_e series, use the hermite.hermeint() method in Python. The 1st parameter, c is an array of Hermite_e series coefficients. If c is multidimensional the different axis correspond to different variables with the degree in each axis given by the corresponding index. The 2nd parameter, m is an order of integration, must be positive. (Default: 1).The 3rd parameter, k is an integration constant(s). The value of the first integral at lbnd is the first value in the list, the value of the second integral at lbnd is the second value, etc. If k == [] (the default), all ... Read More

The strings package of Golang has a Replace() function which we can use to replace some characters in a string with a new value. It replaces only a specified "n" occurrences of the substring.In addition to Replace(), there is a ReplaceAll() function that replaces all the occurrences of a given substring with a new value.Syntaxfunc Replace(s, old, new string, n int) stringWhere, s is the given stringold is the string which we want to replacenew is the string which will replace the old stringn represents the number of characters which we want to replace in the given string.ExampleThe following example demonstrates ... Read More

To integrate a Hermite_e series, use the hermite_e.hermeint() method in Python. The 1st parameter, c is an array of Hermite_e series coefficients. If c is multidimensional the different axis correspond to different variables with the degree in each axis given by the corresponding index.The 2nd parameter, m is an order of integration, must be positive. (Default: 1). The 3rd parameter, k is an integration constant(s). The value of the first integral at lbnd is the first value in the list, the value of the second integral at lbnd is the second value, etc. If k == [] (the default), all ... Read More

To remove small trailing coefficients from Legendre polynomial, use the legendre.legtrim() method in Python numpy. The method returns a 1-d array with trailing zeros removed. If the resulting series would be empty, a series containing a single zero is returned.The “Small” means “small in absolute value” and is controlled by the parameter tol; “trailing” means highest order coefficient(s), e.g., in [0, 1, 1, 0, 0] (which represents 0 + x + x**2 + 0*x**3 + 0*x**4) both the 3-rd and 4-th order coefficients would be “trimmed”. The parameter c is a 1-d array of coefficients, ordered from lowest order to ... Read More