R , or r, is the eighteenth letter of the English alphabet.
R or r may also refer to:
Q, or q, is the seventeenth letter of the English alphabet.
RT may refer to:
Many letters of the Latin alphabet, both capital and small, are used in mathematics, science, and engineering to denote by convention specific or abstracted constants, variables of a certain type, units, multipliers, or physical entities. Certain letters, when combined with special formatting, take on special meaning.
C, or c, is the third letter of the Latin alphabet.
E, or e, is the fifth letter of the Latin alphabet.
D, or d, is the fourth letter of the Latin alphabet.
Z, or z, is the twenty-sixth and last letter of the English alphabet.
I, or i, is the ninth letter of the Latin alphabet.
V, or v, is the twenty-second letter of the English alphabet.
R-value or rvalue may refer to:
T, or t, is the twentieth letter of the English alphabet.
N, or n, is the fourteenth letter of the English alphabet.
B, or b, is the second letter of the Latin alphabet.
A, or a, is the first letter of the Latin alphabet.
F, or f, is the sixth letter of the Latin alphabet.
G, or g, is the seventh letter of the Latin alphabet.
H, or h, is the eighth letter of the Latin alphabet.
L, or l, is the twelfth letter of the English alphabet.
P, or p, is the sixteenth letter of the English alphabet.
U, or u, is the twenty-first letter of the English alphabet.
