θ. ∠ α β. ⊥
NO3H2O(NO3)2
D23
r12 + r22
ax2 + bx + c
ax2 + bx + c = 0
ax3 + bx2 + cx + d = 0
Greek Alphabet
Alpha Α α
Beta Β β
Gamma Γ γ
Delta Δ δ
Epsilon Ε ε
Zeta Ζ ζ
Eta Η η
Theta Θ θ
Iota Ι ι
Kappa Κ κ
Lambda Λ λ
Mu Μ μ
Nu Ν ν
Xi Ξ ξ
Omicron Ο ο
Pi Π π
Rho Ρ ρ
Sigma Σ σ
Tau Τ τ
Upsilon Υ υ
Phi Φ φ
Chi Χ χ
Psi Ψ ψ
Omega Ω ω
∴
∵
Symbol | Symbol Name | Meaning/definition of the Symbols | Example |
∠ | angle | formed by two rays | ∠ABC = 30º |
∟ | right angle | = 90º | α = 90º |
∢ | spherical angle | an angle, which is formed by the intersection of 2 great circles of the sphere. | AOB = 30º |
´ | arcminute | 1º = 60´ | α = 60º59′ |
º | degree | 1 turn = 360º | α = 60º |
´´ | arcsecond | 1´ = 60´´ | α = 60º59’59” |
ray | line that start from point A | ||
AB | line segment | the line from point A to point B | |
| | perpendicular | perpendicular lines (90º angle) | AC | BC |
≅ | congruent to | equivalence of geometric shapes and size | ∆ABC ≅∆XYZ |
|| | parallel | parallel lines | AB || CD |
Δ | triangle | triangle shape | ΔABC ≅ΔBCD |
~ | similarity | same shapes, not the same size | ∆ABC ~∆XYZ |
π | pi constant | π = 3.141592654… is the ratio between the circumference and diameter of a circle | c = π·d = 2·π·r |
|x–y| | distance | distance between points x and y | | x–y | = 5 |
grad | grads | grads angle unit | 360º = 400 grad |
rad | radians | radians angle unit |
Addition
+ Adder (योजक / योजकांक )
Sum (योग / जोड़)
Subtraction
Multiplication
Division
Dividend= Devisor × Quotient + Reminder
भाज्य = भाजक × भागफल + शेषफल
भाज्यांक = भाजकांक × भागफलांक + शेषफलांक
⇐⇒↗↖↘↙⤴⤵↢↣↱ ↰ ↲ ↳ ⇆ ⇔
➞ ⟵ ↘
A = √s(s−a)(s−b)(s−c)
Then:
Similarly, if the exponent is
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