Update stdlib to use `print` instead of `printf` in all cases. This

means bringing in fpconv to do float-to-string conversion and a few
updates to integer and number methods for string formatting.

1 files changed, 32 insertions, 46 deletions

diff --git a/api/nums.md b/api/nums.md
index e42329f9..471a7739 100644
--- a/api/nums.md
+++ b/api/nums.md
@@ -563,28 +563,6 @@ x | `Num` | The number to be rounded down.  | -
 = 3
 
 ```
-## Num.format
-
-```tomo
-Num.format : func(n: Num, precision: Int = 0 -> Text)
-```
-
-Formats a number as a text with a specified precision.
-
-Argument | Type | Description | Default
----------|------|-------------|---------
-n | `Num` | The number to be formatted.  | -
-precision | `Int` | The number of decimal places. Default is `0`.  | `0`
-
-**Return:** A text representation of the number with the specified precision.
-
-
-**Example:**
-```tomo
->> (3.14159).format(precision=2)
-= "3.14"
-
-```
 ## Num.hypot
 
 ```tomo
@@ -930,7 +908,7 @@ text | `Text` | The text containing the number.  | -
 ## Num.percent
 
 ```tomo
-Num.percent : func(n: Num, precision: Int = 0 -> Text)
+Num.percent : func(n: Num, precision: Num = 0.01 -> Text)
 ```
 
 Convert a number into a percentage text with a percent sign.
@@ -938,7 +916,7 @@ Convert a number into a percentage text with a percent sign.
 Argument | Type | Description | Default
 ---------|------|-------------|---------
 n | `Num` | The number to be converted to a percent.  | -
-precision | `Int` | The number of decimal places. Default is `0`.  | `0`
+precision | `Num` | Round the percentage to this precision level.  | `0.01`
 
 **Return:** A text representation of the number as a percentage with a percent sign.
 
@@ -949,6 +927,10 @@ precision | `Int` | The number of decimal places. Default is `0`.  | `0`
 = "50%"
 >> (1./3.).percent(2)
 = "33.33%"
+>> (1./3.).percent(2, precision=0.0001)
+= "33.3333%"
+>> (1./3.).percent(2, precision=10.)
+= "30%"
 
 ```
 ## Num.rint
@@ -997,28 +979,6 @@ x | `Num` | The number to be rounded.  | -
 = 3
 
 ```
-## Num.scientific
-
-```tomo
-Num.scientific : func(n: Num, precision: Int = 0 -> Text)
-```
-
-Formats a number in scientific notation with a specified precision.
-
-Argument | Type | Description | Default
----------|------|-------------|---------
-n | `Num` | The number to be formatted.  | -
-precision | `Int` | The number of decimal places. Default is `0`.  | `0`
-
-**Return:** A text representation of the number in scientific notation with the specified precision.
-
-
-**Example:**
-```tomo
->> (12345.6789).scientific(precision=2)
-= "1.23e+04"
-
-```
 ## Num.significand
 
 ```tomo
@@ -1189,6 +1149,32 @@ x | `Num` | The number to be truncated.  | -
 = -3
 
 ```
+## Num.with_precision
+
+```tomo
+Num.with_precision : func(n: Num, precision: Num -> Num)
+```
+
+Round a number to the given precision level (specified as `10`, `.1`, `.001` etc).
+
+Argument | Type | Description | Default
+---------|------|-------------|---------
+n | `Num` | The number to be rounded to a given precision.  | -
+precision | `Num` | The precision to which the number should be rounded.  | -
+
+**Return:** The number, rounded to the given precision level.
+
+
+**Example:**
+```tomo
+>> (0.1234567).with_precision(0.01)
+= 0.12
+>> (123456.).with_precision(100)
+= 123500
+>> (1234567.).with_precision(5)
+= 1234565
+
+```
 ## Num.y0
 
 ```tomo