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-rw-r--r--julia.html.markdown20
1 files changed, 17 insertions, 3 deletions
diff --git a/julia.html.markdown b/julia.html.markdown
index c5089dc3..ef3ea244 100644
--- a/julia.html.markdown
+++ b/julia.html.markdown
@@ -2,6 +2,7 @@
language: Julia
contributors:
- ["Leah Hanson", "http://leahhanson.us"]
+ - ["Pranit Bauva", "http://github.com/pranitbauva1997"]
filename: learnjulia.jl
---
@@ -102,6 +103,11 @@ false
# Printing is easy
println("I'm Julia. Nice to meet you!")
+# String can be compared lexicographically
+"good" > "bye" # => true
+"good" == "good" # => true
+"1 + 2 = 3" == "1 + 2 = $(1+2)" # => true
+
####################################################
## 2. Variables and Collections
####################################################
@@ -117,11 +123,11 @@ catch e
println(e)
end
-# Variable names start with a letter.
+# Variable names start with a letter or underscore.
# After that, you can use letters, digits, underscores, and exclamation points.
SomeOtherVar123! = 6 # => 6
-# You can also use unicode characters
+# You can also use certain unicode characters
☃ = 8 # => 8
# These are especially handy for mathematical notation
2 * π # => 6.283185307179586
@@ -390,6 +396,14 @@ end
add(5, 6) # => 11 after printing out "x is 5 and y is 6"
+# Compact assignment of functions
+f_add(x, y) = x + y # => "f (generic function with 1 method)"
+f_add(3, 4) # => 7
+
+# Function can also return multiple values as tuple
+f(x, y) = x + y, x - y
+f(3, 4) # => (7, -1)
+
# You can define functions that take a variable number of
# positional arguments
function varargs(args...)
@@ -723,7 +737,7 @@ code_native(square_area, (Float64,))
# ret
#
# Note that julia will use floating point instructions if any of the
-# arguements are floats.
+# arguments are floats.
# Let's calculate the area of a circle
circle_area(r) = pi * r * r # circle_area (generic function with 1 method)
circle_area(5) # 78.53981633974483