Mathematics by Letter - D

Can you guess these words related to the field of mathematics beginning with the letter D?

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Last updated: June 5, 2025

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Hint	Answer
The gap between two numbers	difference
Polygon with 10 sides	decagon
360 of these in a full circle	degrees
Expression equal to b^2 - 4ac in the quadratic formula	discriminant
Part of calculus, involving infinitesimal rates of change	differentiation
Base-10 number system	decimal
When a sequence never approaches a fixed value it is described as this	divergent
All possible input values of a function	domain
Platonic solid with 12 equal faces	dodecahedron
Region inside a circle	disk
Vector equivalent of distance	displacement
Way of multiplying two vectors, to find essentially how much the vectors are pointing the same direction	dot product
Type of equation where only integer solutions are desired e.g. 14x - 11y = 29	Diophantine equation
Process used on a matrix which reduces it into another matrix where all cells are zeroes except those on the line from top left to bottom right.	diagonalisation
e.g. normal, poisson, binomial	distribution