There is only 1 type of calculus
An amazing idea with a few names – the ‘calculus of logic’ or the ‘calculus of probability’ – but really there is only one Calculus, despite the idea coming from the brains of 2 different people: Isaac Newton and Gottfried Leibniz who pioneered it in the 17th century.
However, they came upon this idea independently. Which version was best? Up to you, but keep in mind that Newton was rude to people, put numerous folk to death when he ran the royal mint, and died a virgin. Go figure