Register more Intrinsic Trig Functions

[faze-geek]

Sinh, Cosh, Tanh are intrinsic built in functions in Fortran. They can be directly added in Lfortran as well.

Example - Sinh results

import cmath
import math
def f():
    print(math.sin(1.5))
    print(cmath.sinh(complex(1,2)))
f()
(lp) C:\Users\kunni\lpython>python try.py
0.9974949866040544
(-0.4890562590412937+1.4031192506220405j)

(lp) C:\Users\kunni\lpython>src\bin\lpython try.py
9.97494986604054446e-01
(-0.489056,1.403119)

[faze-geek]

@Thirumalai-Shaktivel this is just an expansion of your commit 3812ea4 . Can you have a look.

[Thirumalai-Shaktivel]

LGTM!

[faze-geek]

Tests from the math.py implementation are already present and work as expected. So I didn't add any separately.

lpython/integration_tests/test_math_02.py

Lines 39 to 43 in 268cec6

	def test_hyperbolic():
	eps: f64 = 1e-12
	assert abs(sinh(1.0) - 1.1752011936438014) < eps
	assert abs(cosh(1.0) - 1.5430806348152437) < eps
	assert abs(tanh(1.0) - 0.7615941559557649) < eps

[certik]

I think that looks good.