In this lesson we talk about how forms are processed via sending data to the superglobal variable _POST and then retrieving it to be processed in PHP.
In this tutorial you will learn how to use calculus to draw a tangent line as well as a normal line to a sine curve.
In this lesson we talk about how to create arrays of different types (indexed and associative) , how to store values in arrays, how to use arrays in conjunction with a for loop and a foreach loop.
In this tutorial I teach you how to do a problem solving question by finding the equation of a tangent line using differentiation.
In this lesson we talk about how to create your own function. We also talk about how to specify the arguments (input variables) for the function and how to make the function return a value (output).
In this tutorial I show you how to do a problem solving calculus question that involves tangents and normals.
In this lesson we talk about some built-in functions that come with PHP – including mathematical functions such as cos(), log(), rand() to generate random numbers, and string functions including strtoupper(), substr() to convert string to lower/upper case and to display parts of a string.
In this second lesson on optimisation using derivatives, we will find the largest possible volume of a right circular cone inscribed in a sphere. This is a very difficult calculus differentiation question, be prepared! Make sure you have done all my differential calculus lessons as well as lesson 1 optimisation tutorial before attempting this question.
In this lesson we talk about what For loops are, and how to use a For Loop to achieve the same thing we did with the while loop. We also talked about how to round numbers using the round function.
In this tutorial we do a sample question where you have to find the largest possible value of a quantity given a condition. You will need to know about differentiation, derivatives, chain rule, product rule, quotient rule, first / second derivative test to find the maximum / minimum, in order to do this question. In …