tan()#

relationalai.std.math
tan(number: Number | Producer) -> Expression

Calculates the tangent of a number. Must be called in a rule or query context.

Parameters#

NameTypeDescription
numberNumber or ProducerThe number to take the tangent of.

Returns#

An Expression object that produces float values.

Example#

tan() works with both numeric producers and Python number objects:

import relationalai as rai
from relationalai.std import alias
from relationalai.std.math import tan

# Create a model named "people" with a Person type.
model = rai.Model("people")
Person = model.Type("Person")

# Add a person to the model.
with model.rule():
    Person.add(name="Alice", age=30)

# tan() works with numeric producers, such as a person's age property.
# Inputs are assumed to be in radians.
with model.query() as select:
    person = Person()
    response = select(person.name, alias(tan(person.age), "tan_age"))

print(response.results)
# Output:
#     name   tan_age
# 0  Alice -6.405331

# tan() also works with Python number objects.
with model.query() as select:
    response = select(tan(0))

print(response.results)
# Output:
#      v
# 0  0.0

See Also#