Because; Therefore, if you use English to prove the process of Solving big problems in graphics or mathematics, because you can't use it with so, both of them indicate causality.

1, α α α a: lf α angle; Coefficient.

2.βββ magnetic flux coefficient; Angle; Coefficient.

3.γγga:mγ conductance coefficient (expressed in numbers).

4. Delta delta delta change; Density; Refraction.

5. Cardinality of ε epsilon logarithm.

Relational character

For example, "=" is an equal sign, "≈" is an approximate sign, "≦" is an unequal sign and ">" is a greater than sign. "

Baidu encyclopedia-mathematical symbols