// Copyright 2015 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package arith

import (
	"v.io/x/ref/lib/vdl/testdata/arith/exp"
)

// Trigonometry is an interface that specifies a couple trigonometric functions.
type Trigonometry interface {
	Sine(angle float64) (float64 | error)
	Cosine(angle float64) (float64 | error)
}

// AdvancedMath is an interface for more advanced math than arith.  It embeds
// interfaces defined both in the same file and in an external package; and in
// turn it is embedded by arith.Calculator (which is in the same package but
// different file) to verify that embedding works in all these scenarios.
type AdvancedMath interface {
	Trigonometry
	exp.Exp
}